Poker Glossary: 60+ Texas Hold'em Terms Explained

All-in

Wagering all remaining chips in a single bet. Once all-in, a player is eligible only for the main pot up to the amount they matched; any excess goes into a side pot between other players.

Ante

A forced bet posted by all players (not just the blinds) before cards are dealt, used to increase pre-deal action and pot size — common in tournaments, typically 10–20% of the big blind.

Backdoor

A draw requiring help on both the turn and river to complete (e.g., needing runner-runner spades for a flush). Backdoor draws add approximately 4% equity per street when both cards are needed.

Bad beat

Losing a pot as a heavy statistical favorite — for example, losing with pocket aces vs. pocket kings when a king hits on the river. Bad beats are inevitable due to variance; pocket aces lose roughly 18% of the time heads-up.

Bankroll

The total amount of money dedicated to poker, separate from living expenses. Standard bankroll management recommends 20–30 buy-ins for cash games and 100+ buy-ins for tournaments to withstand variance.

BB (Big Blind)

The forced bet posted by the player two seats left of the dealer button, equal to the minimum bet size. The BB acts last preflop and first on all postflop streets, which is a positional disadvantage.

Bluff

A bet or raise with a hand that cannot win at showdown, relying entirely on your opponent folding. The minimum fold percentage needed to break even on a bluff is: bet ÷ (pot + bet).

Board

The community cards dealt face-up in the center of the table — the flop (3 cards), turn (1 card), and river (1 card). All 5 board cards are shared by all active players.

BTN (Button)

The dealer button position — the best seat in poker because it acts last on every postflop street. Button open-raise frequency in a solved 6-max game is approximately 45–55% of hands.

Call

Matching the current bet to stay in the hand. A call is profitable when your hand equity percentage exceeds the pot odds percentage required (e.g., 30% equity vs. 25% required).

Check

Declining to bet when no bet has been made on the current street, passing action to the next player. Checking does not forfeit your stake in the pot.

Check-raise

Checking to an opponent, then raising when they bet. Used to build pots with strong hands, deny equity to draws, or as a bluff on coordinated boards. Check-raise frequency in GTO is approximately 8–12% on most flop textures.

CO (Cutoff)

The position immediately to the right of the Button — second-best position postflop. CO open range in 6-max is typically 25–35% of hands, folding to the Button's positional advantage.

Combo draw

A drawing hand combining two or more draws simultaneously, such as a flush draw plus an open-ended straight draw. Combo draws often have 50–60% equity against a single pair, making them profitable semi-bluffs.

Continuation bet (C-bet)

A bet on the flop by the preflop aggressor, maintaining pressure regardless of whether the board helped. Standard sizing is 25–75% pot; frequency is typically 50–70% on favorable textures.

Dead money

Chips already in the pot from players who have folded, contributing to the pot odds of remaining players. Dead money makes calls and bluffs more profitable by inflating the pot without adding opponents.

Donk bet

A bet made by an out-of-position player into the preflop aggressor on the flop, before the aggressor has acted. Donk bets are often range-polarizing signals; GTO donk frequency is low (under 10% on most boards).

Double barrel

Betting both the flop and the turn as the preflop aggressor — two consecutive continuation bets. Double barrels with semi-bluffs are most profitable on turn cards that improve your perceived range.

Draw

An incomplete hand that needs one or more specific cards to become strong (e.g., four cards to a flush needing the fifth). Draws are evaluated by counting outs and comparing equity to pot odds.

Equity

Your percentage share of the pot at any moment if the hand were to run out to showdown infinitely. Pocket aces have ~85% equity vs. pocket kings preflop; a flush draw has ~35% vs. top pair on the flop.

EV (Expected Value)

The average financial outcome of a decision over many repetitions: EV = (P_win × profit) − (P_lose × loss). Any play with positive EV is profitable long-term regardless of short-term results.

Fish

A weak or recreational player who makes many fundamental mistakes, characterized by VPIP >40%, frequent limping, and poor pot odds decisions. Fish are the primary profit source for winning players.

Flop

The first three community cards dealt face-up simultaneously. The flop is the most important street — it defines the texture of the board and typically sees the most equity-critical decisions.

Flush draw

Four cards of the same suit needing one more to complete a flush. A flush draw has 9 outs, approximately 19% equity on the turn (1 card to come) and 35% on the flop (2 cards to come).

Fold

Discarding your hand and surrendering all chips in the pot. Folding is correct when your hand equity is less than the pot odds required to call: if pot odds require 30% equity and you have 20%, fold.

Fold equity

The value gained from the probability your opponent folds when you bet: Fold Equity = P(fold) × pot. Fold equity is highest preflop and on the flop; it is mathematically 0 on the river.

Fold-to-cbet

The percentage of times a player folds to an opponent's continuation bet on the flop. A fold-to-cbet above 55% indicates a player being exploited by high c-bet frequencies; below 40% suggests calling too wide.

GTO (Game Theory Optimal)

A balanced poker strategy that cannot be exploited — achieved by mixing bet/check frequencies at precise ratios so opponents cannot profitably deviate from their own equilibrium strategy. Computed by solver software.

Gutshot

An inside straight draw requiring one specific card rank to complete (e.g., holding 5-6-8-9 needing a 7). A gutshot has 4 outs — approximately 9% equity on the turn and 16–17% on the flop.

Hand equity

Your probability of winning the pot at showdown against a specific opponent holding a specific hand or range. Calculated by equity calculators; forms the basis of pot odds and EV calculations.

HJ (Hijack)

The position two seats to the right of the Button in a full ring. HJ is a middle-late position with a typical open range of 18–25% of hands. It got its name from 'hijacking' the button's positional advantage.

ICM (Independent Chip Model)

A mathematical model translating tournament chip stacks into real monetary equity, accounting for the payout structure. ICM pressure causes chip-leaders to call tighter than chip-EV alone would suggest near the bubble.

Implied odds

Extended pot odds accounting for future bets you expect to win if you hit your draw — allowing calls that fail immediate pot odds tests when hitting produces disguised strong hands worth many future bets.

In position

Acting after your opponent on postflop streets, giving you informational advantage. Being in position (IP) adds significant EV to every hand — the Button vs. the Small Blind has a structural edge on every street.

ITM (In The Money)

Reaching the paid portion of a tournament's prize pool. ICM decisions become critical as the field approaches the ITM bubble — typically the final 10–15% of the field depending on payout structure.

Kicker

The unpaired side card that determines the winner when two players share the same made hand (e.g., both have a pair of aces — the higher kicker wins). Ace-King beats Ace-Queen with a pair of aces by kicker.

Late position

The Hijack, Cutoff, and Button seats — positions that act later on all streets, providing maximum information before each decision. Late position players can profitably play 30–55% of hands depending on seat.

Limp

Entering the pot preflop by calling the big blind rather than raising. Limping is generally suboptimal for skilled players because it fails to build the pot with strong hands and surrenders initiative.

Maniac

An extremely aggressive player who raises and re-raises with a very wide range, often with VPIP >50% and PFR >40%. Maniacs create large pots and variance; the counter-strategy is to call down wider with medium-strength hands.

MDF (Minimum Defense Frequency)

The minimum fraction of your range you must continue (call or raise) to prevent an opponent from profitably bluffing 100% of the time: MDF = 1 − (bet ÷ (pot + bet)). At a 75%-pot bet, MDF = 1 − 0.43 = 57%.

Merged range

A betting range containing hands of similar, medium-to-strong strength — neither polarized (very strong or air) nor condensed (medium only). Merged ranges use smaller bet sizes on boards favorable to the bettor.

Micro stakes

Cash game stakes with blinds of $0.01/$0.02 up to $0.10/$0.25. Micro stakes are characterized by high VPIP, low fold-to-cbet, and exploitative strategies outperforming GTO approaches against recreational players.

Middle position

The Lojack (LJ) and UTG+1 seats in a full-ring game — earlier than late position but later than UTG. Standard middle position open range is 15–22% of hands.

MTT (Multi-table tournament)

A poker tournament with multiple tables that consolidate as players are eliminated, ending with a single final table. MTT strategy involves ICM considerations near the bubble and final table pay jumps.

Multi-way pot

A pot contested by 3 or more players. Multi-way pots require tighter value betting ranges (opponents' combined ranges are stronger), fewer bluffs (lower fold probability against multiple players), and stronger hands to continuation bet.

Nit

An extremely tight, passive player who plays only premium hands and rarely bluffs. Nits have VPIP typically below 12% in 6-max games; they are exploitable by stealing their blinds aggressively and never bluffing when they show strength.

Nuts (Nut hand)

The best possible hand given the board cards. On a board of A-K-Q-J-T rainbow, the nuts is any two cards containing the Broadway straight. Betting the nuts for maximum value is called 'nutting off' a hand.

OESD (Open-ended straight draw)

A straight draw that can be completed by one of two different card ranks on either end (e.g., holding 7-8 on a 5-6-X board, needing a 4 or 9). An OESD has 8 outs — approximately 17% equity on the turn and 31% on the flop.

Out of position

Acting before your opponent on postflop streets (OOP). Out-of-position players must act with less information, reducing EV. The Small Blind is out of position against all other players on every postflop street.

Outs

The number of unseen cards that improve your hand to likely the best hand. Each out is worth approximately 2% equity per remaining street (the Rule of 2): 9 flush draw outs × 2 = ~18% per card.

Overbet

A bet larger than the current pot size, used to polarize your range and apply maximum pressure. Overbets are typically 1.25–2× pot; they signal a very strong hand or complete bluff and force your opponent into difficult decisions.

Overcard

A card higher than any card on the board. Holding AK on a board of Q-7-2 means you have two overcards. Overcards typically have 3–6 outs to improve to top pair.

Overpair

A pocket pair higher than the highest card on the board. Holding KK on a Q-8-3 board gives you an overpair. Overpairs typically have 70–80% equity vs. a single pair on the flop.

Polarized range

A betting range consisting of very strong hands (nuts or near-nuts) and bluffs (air), with few medium-strength hands. Polarized ranges use large bet sizes (75–150% pot) to put maximum pressure on opponents' medium holdings.

Pot odds

The ratio of the pot size to the cost of calling, determining the minimum equity needed: required equity = call ÷ (pot + call). Pot $100, call $50 → required equity = 50 ÷ 150 = 33%.

Preflop

The first betting round before any community cards are dealt. Preflop decisions — which hands to open, 3-bet, call, or fold — form the foundation of all subsequent play and set up positional and range advantages.

Probe bet

A bet made by an out-of-position player on the turn or river after the preflop aggressor checked back on the previous street. Probe bets signal that the bettor wants to reclaim initiative and deny free cards.

Raise

Increasing the size of an existing bet. Raises serve three purposes: building the pot for value, folding out opponent equity, or semi-bluffing. Minimum raise size is typically 2× the previous bet.

Range

The complete set of all hands a player could plausibly hold in a given situation, rather than one specific hand. Advanced players think in ranges — assigning probability weights to each possible hand — not specific hand-by-hand reads.

RFI (Raise First In)

Raising as the first player to voluntarily enter the pot preflop (no previous opens). RFI ranges vary by position — typically 12–15% from UTG, 20–25% from HJ, 35–45% from CO, and 45–55% from the Button.

River

The fifth and final community card. On the river there are no more draws to complete, so fold equity from draws is 0 — all bluffs are pure bluffs and value bets are purely for showdown value.

Runner-runner

Completing a draw using both the turn and river cards (two consecutive cards needed). A backdoor flush draw is a runner-runner draw with approximately 4% probability per needed street (roughly 4% combined).

SB (Small Blind)

The forced bet posted by the player immediately left of the dealer button, equal to half the big blind. The SB is the worst position postflop — acting first on every street against all remaining players.

Semi-bluff

A bet or raise with a drawing hand that has both fold equity (opponent folds immediately) and hand equity (win at showdown if called). Semi-bluffs are superior to pure bluffs because they profit from both scenarios.

Set

Three of a kind made by holding a pocket pair that matches one board card. Sets have roughly 7.5:1 odds against flopping (approximately 11.8% per pocket pair). Sets have exceptional implied odds due to their disguised strength.

Short stack

A player with fewer chips than the effective stack norm — typically below 40bb in cash games or below 20bb in tournaments. Short stacks have simplified push/fold decisions with less postflop complexity.

Showdown

The reveal of all active players' hole cards at the end of betting to determine the winner. A hand reaches showdown only if at least one player calls the final bet — otherwise the last aggressor wins without showing cards.

Slowplay

Playing a very strong hand passively (checking or calling instead of betting or raising) to conceal its strength and extract more value from opponents. Slowplaying is profitable only when you need opponents to build the pot for you.

SPR (Stack-to-Pot Ratio)

The ratio of effective stack size to the pot size at the start of a street: SPR = effective stack ÷ pot. Low SPR (below 4) favors committing with top pair; high SPR (above 13) requires stronger hands to commit.

Squeeze

A 3-bet facing an open raise plus one or more callers, exploiting compounded fold equity. With 2 opponents each folding 60%, the combined fold probability is 1 − (0.4 × 0.4) = 84%, creating massive fold equity.

Stack depth

The size of effective stacks relative to the blinds (in big blinds) or pot (SPR). Stack depth governs how much implied odds, SPR pressure, and postflop complexity factor into decision-making.

Straight draw

Four cards to a straight needing one more to complete — either open-ended (8 outs, ~31% on flop) or gutshot (4 outs, ~17% on flop). Both are semi-bluff candidates when pot odds or fold equity justify betting.

Three-bet (3-bet)

The third bet in a preflop sequence — a re-raise over an open raise. Standard sizing is 3× in position, 3.5–4× out of position. 3-bets use value hands (AA, KK, QQ, AKs) and balanced bluffs (suited blockers like A5s).

Tilt

Playing sub-optimally due to emotional distress — often caused by bad beats, coolers, or a losing session. Tilt manifests as calling too wide, bluffing too often, or chasing losses. The primary cure is recognizing the emotional state and taking a break.

Top pair

A pair made by matching one of your hole cards with the highest card on the board (e.g., holding AK on a board of K-7-2 = top pair top kicker). Top pair typically has 65–75% equity on the flop against a single pair draw.

Turn

The fourth community card, dealt after the flop betting round. The turn increases pot size dramatically and narrows ranges further — draws now have 1 card to come (~2% equity per out vs. 4% per out on the flop).

Under the Gun (UTG)

The first player to act preflop — the seat immediately left of the Big Blind. UTG must act with no information from other players, requiring the tightest opening range: approximately 12–15% of hands in a full 9-handed game.

Value bet

A bet made with a strong hand to extract chips from opponents holding worse hands. A value bet is profitable when your opponent calls with worse hands more than 50% of their calling range. Standard value bet sizing is 60–80% of pot.

VPIP (Voluntarily Put money In Pot)

The percentage of hands a player voluntarily puts money in preflop (excluding forced blinds). VPIP >35% signals a loose player; VPIP <15% signals a nit. Ideal TAG (tight-aggressive) range is 20–28% in 6-max.

Wet board

A board texture with many draws and possible strong hands — characterized by connected ranks, two or more suited cards, and high card density (e.g., J♥-T♦-9♥). Wet boards require polarized ranges and larger bet sizes.

Whale

A recreational player with a very large bankroll who plays for entertainment rather than profit — often characterized by VPIP >60%, minimal hand selection, and extremely loose calling tendencies. Whales are the highest-value targets for table selection.

What is pot odds in poker?

Pot odds are the ratio of the current pot size to the cost of calling a bet, used to determine if a call is mathematically profitable. For example, if the pot is $100 and your opponent bets $50, the total pot becomes $150 and your call costs $50, giving you pot odds of 150:50 or 3:1. Expressed as a percentage, this means you need at least 25% equity to make a profitable call. If your hand has a flush draw (about 35% equity on the flop with 2 cards to come), the call is clearly correct because 35% exceeds the required 25%. Pot odds apply to every single call decision in Texas Hold'em — preflop, flop, turn, and river — and are the most foundational math concept in poker. Memorizing common ratios (2:1 = 33%, 3:1 = 25%, 4:1 = 20%) lets you make real-time decisions without complex arithmetic.

What does equity mean in poker?

Equity is your share of the total pot if the hand were run to showdown an infinite number of times, expressed as a percentage. It represents your probabilistic ownership of the pot at any given moment in the hand. A flush draw on the flop has approximately 35% equity against one opponent holding top pair — meaning if that exact situation played out 100 times, you would win the pot about 35 times. Pocket aces preflop have about 85% equity against pocket kings, which is why they are such a dominant favorite. Equity is dynamic — it changes on every street as new cards are revealed. You use equity alongside pot odds: if your equity percentage exceeds the pot odds percentage required, the call is mathematically profitable. Hand equity calculators like RiverOdds let you compute exact percentages for any hand matchup in real time.

What is a 3-bet in poker?

A 3-bet is the third bet in a preflop betting sequence: the big blind posting counts as bet 1, one player raising counts as bet 2, and another player re-raising is the 3-bet. Standard 3-bet sizing is approximately 3× the open raise when you are in position (acting after your opponent on postflop streets), and 3.5–4× when you are out of position, to compensate for the informational disadvantage. A 3-bet strategy has two components: value 3-bets with premium hands like AA, KK, QQ, JJ, and AKs, and bluff 3-bets with hands that have blocker value — for example, A5s blocks the top of your opponent's continuing range while having flush draw potential. Typical GTO 3-bet frequencies run 8–14% from the button vs. a CO open. A 4-bet is a re-raise against the 3-bet, and a 5-bet is usually an all-in.

What is a continuation bet (c-bet)?

A continuation bet is a bet made on the flop by the player who was the preflop aggressor — continuing their aggression from before the flop to the next street. C-bets are one of the most common plays in Texas Hold'em because the preflop raiser's range is stronger on average and most flops miss most hands (roughly 67% of the time, a random hand misses the flop entirely). Standard c-bet sizing runs 25–50% of the pot on dry, disconnected boards (like A72 rainbow) and 50–75% on wet, coordinated boards (like J-T-9 two-tone). C-bet frequency in GTO play is typically 50–70% on single-broadway boards where the raiser has a range advantage. Opponents who fold too often to c-bets can be exploited with a near-100% c-bet frequency; calling stations require a tighter, value-heavy c-bet range.

What does position mean in poker?

Position refers to where you sit relative to the dealer button and, critically, how late you act in each betting round. Acting later gives you more information — you see what all opponents do before making your decision — which is a structural, permanent advantage every hand. Positions from earliest to latest in a full 9-handed game are: UTG (Under The Gun), UTG+1, LJ (Lojack), HJ (Hijack), CO (Cutoff), BTN (Button), SB (Small Blind), and BB (Big Blind). The Button is the best position in poker because you act last on every postflop street (flop, turn, and river). Players on the Button can profitably open about 45–55% of hands in a well-calibrated range, compared to only 12–15% from UTG. Position is so important that many poker coaches argue it is the single biggest factor in long-term win rate — even a weak hand in position beats a strong hand out of position in many scenarios.

What is GTO poker?

GTO stands for Game Theory Optimal — a theoretically perfect balanced poker strategy that cannot be exploited by any opponent, regardless of how they choose to play against you. A GTO player uses mixed strategies, meaning they sometimes bet and sometimes check with the same hand at specific frequencies (for example, betting top pair 70% of the time and checking 30%), which prevents opponents from profiting by always calling or always folding. Pure GTO solutions are computed by poker solver software that processes billions of decision nodes; in practice, human players approximate GTO to build an unexploitable baseline. GTO is especially important in high-stakes games where skilled opponents are looking for leaks to exploit. However, GTO is not always the highest-EV approach against weak recreational players — exploitative adjustments (deviating from GTO to target specific opponent tendencies) often produce higher profit. The standard framework is: default to GTO, then deviate to exploit when you have strong reads.

What is variance in poker?

Variance is the natural statistical swing in poker results caused by short-term luck that is independent of your long-term skill edge. Because poker involves incomplete information and random cards, even a winning player will experience long stretches of losing results purely due to variance. A player with a solid 5bb/100 win rate can realistically lose for 10,000+ hands (roughly 100 hours of play) without that loss being evidence of playing badly. Standard deviation for a typical cash game player runs approximately 80–120bb per 100 hands, which quantifies how widely results scatter around the mean. Variance is larger in tournaments than cash games because tournament results depend on fewer key decisions (and those decisions compound into elimination). Bankroll management exists specifically to survive variance: most experts recommend a minimum of 20–30 buy-ins for cash games and 100+ buy-ins for tournament play. Tracking software and sample sizes of 50,000–100,000 hands are necessary to draw statistically meaningful conclusions about win rate.