Wave the white flag

Wave the white flag is an idiom with ancient roots. An idiom is a commonly used word, group of words, or phrase that has a figurative meaning that is not easily deduced from its literal definition. Often using descriptive imagery or metaphors, common idioms are words and phrases used in the English language in order […]
from Grammarist
https://grammarist.com/idiom/wave-the-white-flag/