say uncle

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say uncle

To admit defeat and/or plead for mercy, especially in an informal physical contest of some kind. Can also be used as an imperative phrase to demand that someone give up or admit defeat. The brothers often play fought, but it was invariably the younger of the two who had to say uncle by the end. Say "uncle," and I'll let you out of this headlock!
See also: say, uncle

say uncle

  (American informal)
to admit that you have been defeated
Usage notes: In children's fights, a child being held down had to say 'uncle' before being allowed to get up.
I'm determined to show them I can be a star. I'm not going to say uncle.
See also: say, uncle

say uncle

tv. to admit defeat; to give up. I never say uncle. I just keep right on going.
See also: say, uncle