Definition of Slow Play
Also known as a “slow play” slowplaying is a deceptive play in which you check or call with a very strong hand to act weak with the intention of raising on a future betting round. When you flop the nuts it can sometimes be correct to slow play because it’s very difficult for an opponent to have a hand they can call with. If your hand is vulnerable to so many bad turn cards, then slow playing becomes much less attractive.
Here’s an example of a slow play gone wrong: