Rabbit hunting is a gambling term mainly used in poker. It refers to the action of running out the rest of the community cards even though the hand has concluded.
Players who go rabbit hunting do so because they generally want to see whether or not they would have made a particular hand.
For example, you’re playing a regular Texas Hold’em game against several opponents. You raise before the flop, and only one other player calls.
After the flop, you bet again, only this time, the last remaining player folds. However, the player requests from the dealer to show them the turn and river cards. This is called rabbit hunting and is generally frowned upon.