Undercall ( poker )

At the showdown, declare your hand as being worse than it is. Many card rooms, particularly in California, have a penalty for overcalling a hand, where they rule that if a player miscalls his hand as being better than it is, causing another player to discard his hand, he may lose claim to the pot; that is, the verbal announcement takes precedence over the actual cards. There is no penalty for under calling a hand, but, except for accidentally, it is usually done only to needle another player by making that player briefly think she has the winner.