Throw in the towel

Throw in the towel

To give up or surrender in the face of adversity or difficulty; to quit or concede defeat.

After hours of trying to fix the broken computer, he finally threw in the towel and called a professional technician.

After years of trying to reconcile their differences, they finally decided to throw in the towel and file for divorce.

Seeing his fighter unable to continue, the coach threw in the towel, conceding defeat and ensuring the boxer's safety.