Slowplay
Playing a monster passively to trap
Definition
Slowplaying means playing a very strong hand passively (check, call) to conceal its strength and let your opponent trap themselves — either by bluffing or by getting attached to a second-best hand. It's the opposite of fastplaying, which builds the pot immediately. Slowplay is only correct when three conditions align: your hand fears almost no upcoming card (dry board, locked-up hand), the opponent's range is too weak to pay big bets anyway, and they are capable of bluffing if you show weakness. A flopped set on A-7-2 rainbow against an aggressive player is the ideal candidate; the same hand on J-T-9 two-tone is the absolute anti-candidate. The classic recreational leak is over-slowplaying: every passive street with a monster is value permanently lost, and cards that "change nothing" are rarer than you think. Modern poker's default rule: big hands want big pots, and you need to start building them early. Slowplay is the argued exception, not the norm.
You defend the BB with 2♠2♣, flop A♦2♥7♠ against the BTN opener, a very aggressive player. Check-calling the flop rather than check-raising is a reasonable slowplay: the board is bone-dry, almost no turn overtakes you, and he'll keep betting his air. On a 9♠8♠7♥ flop, by contrast, your set should raise immediately.