throw in the towel
verb
Forms throws in the towel throwing in the towel threw in the towel thrown in the towel
- verb (idiomatic) To quit; to give up. “If their restaurant can't get business even on Mother's Day, it might be time for them to throw in the towel.”
Synonyms
throw in the cards throw in the sponge throw up one's hands throw up the sponge drop out give up fall by the wayside drop by the wayside throw in quit chuck up the sponge
Etymology
From the traditional signal from a boxer's support staff of throwing such an item into a boxing ring to indicate that the contestant cannot continue the match and is forfeiting to the opponent.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “throw in the towel”, CC BY-SA 4.0. Details