tap out

(intransitive, combat sports) To submit to an opponent by tapping one's hand repeatedly either on the arena or the opponent's body.

(combat sports, transitive) To force (an opponent) to submit.

(transitive) To relieve a person of duty, such as a casino worker or wrestler in a tag-team match.

(intransitive) To run out of money in a gambling establishment.

(transitive) To produce (a message, rhythm, or other thing) by tapping.

(transitive) To deplete, especially of a liquid; to finish the last of a drink.