Sandbag - Pretending to have a weak hand when you’re actually strong.
Satellite - A smaller tournament where the prize is entry to a bigger one.
Scare Card - A card that might improve an opponent’s hand or complete a draw.
Second Barrel - A bet on the turn after betting on the flop.
Second Pair - A pair made with the second-highest card on the board.
Semi-Bluff - Bluffing with a drawing hand that could still improve.
Sequence - A run of consecutive ranked cards.
Set - Three of a kind using a pocket pair and a matching board card.
Set Over Set - When two players both have sets, but one is higher.
Set-Up - A pre-arranged deck, or simply preparing a new deck for play.
Sevens Rule - In lowball, a rule that forces betting with a strong draw (seven or better).
Shark - A skilled, often intimidating poker player.
Shill - A player paid to start games and keep tables active.
Short Buy - Buying into a game with less than the usual minimum.
Short Stack - A small chip stack compared to the others at the table.
Short Handed - A game with fewer than six players.
Shoe - A container holding cards to be dealt, used in some casino games.
Shootout - A tournament format where each table plays to one winner before merging.
Shove - Going all-in.
Show Hand - Revealing your cards voluntarily or at showdown.
Showdown - When all remaining players reveal hands to determine the winner.
Showdown Value - A hand likely strong enough to win without betting.
Sick - Slang for something impressive, lucky, or brutal.
Side Game - A casual game running alongside a tournament.
Side Pot - A separate pot created when a player is all-in and others keep betting.
Sit and Go - A tournament that starts when enough players join.
Sizing - The amount you choose to bet.
Slow Play - Playing a strong hand passively to trap opponents.
Slowroll - Deliberately delaying revealing a winning hand at showdown (rude).
Small Bet - A bet at the lower limit in fixed-limit games.
Small Blind - The smaller of two forced bets before the cards are dealt.
Snap Call - Instantly calling a bet, usually with a strong hand.
Soft Break - Getting chips and cash back when buying in, leaving only some chips in play.
Soft Play - Intentionally playing gently against a friend or partner (often banned).
Solver - Software that finds optimal poker strategies.
Smooched - When someone edges out your hand with a slightly better one.
Snow - Bluffing in draw poker by pretending you have a pat (strong) hand.
Splash the Pot - Tossing chips messily into the pot (generally not allowed).
Split - Dividing the pot between players with equal hands.
Split Pot - A pot shared between players, often in high/low games or ties.
Split Two Pair - Two pair made using one hole card and one board card for each pair.
Spread - The difference between the minimum and maximum bets.
Spread Limit - A betting structure where bets can range between two set amounts.
Squeeze - A big re-raise after others have already called a raise.
SRP - Single Raised Pot, a pot where someone raised preflop and got called.
Stack - A player’s pile of chips.
Stack to Pot Ratio - The ratio between your stack and the pot size.
Stakes - The amount of money involved in a game.
Staking - Backing a player financially in return for a share of winnings.
Stand Pat - In draw poker, keeping your hand without drawing new cards.
Starting Hand - The first two cards you're dealt (in Hold’em) or initial hand.
Static Board - A board unlikely to change hand strength much on later streets.
Steal - Betting or raising to win the pot when no one seems interested.
Steam - Playing recklessly due to frustration or tilt.
Steel Wheel - A five-high straight flush (A-2-3-4-5).
Stop and Go - Calling preflop and betting big on the flop, usually all-in.
Straddle - A blind bet made before cards are dealt, usually twice the big blind.
Straddle Bet - Same as straddle: a voluntary blind raise to increase the pot.
Straight - Five cards in sequence, not all the same suit.
Straight Flush - Five cards in sequence, all the same suit.
Street - Another name for a betting round or card dealt (e.g. "fourth street").
Street Poker - Casual or aggressive poker without strict adherence to theory.
String Bet - An illegal bet made in more than one motion without declaring the full amount.
Structure - The rules for betting, blinds, and how a game runs.
Stub - The unused cards left after dealing.
Stud - A poker variant where some cards are dealt face-up and some face-down.
Subscription Poker - A site where players pay monthly for access, not per hand.
Suck Out - Winning a hand by hitting a lucky card when behind.
Suited - Cards of the same suit.
Suited Connectors - Two cards of the same suit and in sequence (like 7♠ 8♠).
Super Satellite - A tournament that awards seats to other satellite events.