Uncle!

Uncle!

An exclamation of defeat or a plea for mercy, especially in an informal physical contest of some kind. Uncle! Uncle! Let me out of this headlock already!

Uncle

verb
References in classic literature ?
'But bless your hearts and eyebrows, all this sort of thing was nothing to my uncle! He was so well seasoned, that it was mere child's play.
"What-ho, great uncle! Couldn't lend one a fiver, could one?" Some married, some didn't, and the partners of those that did became, as custom demands, honorary and adoptive aunts and uncles.
I shouted out Thats my Uncle! but none of the other boys believed me.
But Richard Burton IS Guys uncle! my mother replied.
During a time of doubt, despair and sickness, a little girl with a performer's smile skipped up to me exuberantly and shrilled, 'Hello Uncle! How are you?' St was like a thunderclap that cleared the skies.