until you're blue in the face
The phrase "until you're blue in the face" means to continue doing or discussing something exhaustively or endlessly, even when it seems ineffective or futile. It implies reaching a point where one has put in so much effort or argued so intensely that they are physically or figuratively "blue in the face" from exhaustion or frustration.
English is confusing! Why do people say "Pardon my French" when they are speaking English? Because of idioms!
An idiom is a phrase or expression that usually presents a figurative, non-literal meaning attached to the phrase. Does that sound fun? It can be!
Play Just Saying - the word game that makes learning idioms a good time on your mobile phone or tablet.