you win

you win

I will accept or agree to what you want. You win. I'm sick and tired of this fighting, so just take the house and the cars. I'll be gone in the morning.
See also: win
Farlex Dictionary of Idioms.

ˈyou win

(spoken) used to agree to what somebody wants after you have failed to persuade them to do or let you do something else: OK, you win, I’ll admit I was wrong.
See also: win
Farlex Partner Idioms Dictionary
See also:
  • feel fit
  • tired to death
  • tired to death of (something)
  • (Do you) know something?
  • be sick of (something)
  • fagged-out
  • dog tired
  • dog-tired
  • dead tired
  • be sick and tired of (something)
References in classic literature
You aren't going to tell me that you care whether you win a tin medal or not?'
'I'm here to see you win this championship and I won't have you taking any risks.
Hope you win. McCay.' So, singularly enough, did the third, fourth, fifth, sixth, and seventh.
The Man Upstairs and Other Stories
if you win the golden arrow you shall be chief of outlaws in Sherwood Forest!"
Robin Hood
Another attitude is simply Win, which is when I'm out to win for myself and don't care whether you win or lose.
Everyone wins: the foundation of interpersonal leadership
"And if you win the battles, the financial results will be good."
Must-Win Battles: How to Win Them, Again and Again