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Word Description
Under the Gun The position of the player who acts first on a betting round. For instance, if you are one to the left of the big blind, you are under the gun before the flop.


Underdog A person or hand who is not mathematically favored to win a pot. For instance, if you flop four cards to your flush, you are not quite a 2:1 underdog to make your flush by the river (that is, you will make your flush about one in three times). See also "dog".

Underpair A pocket pair of lower value than the lowest card on the board.

UO Unopened

UTG Under The Gun