Till she's blue in the face - Idioms by The Free Dictionary
till (one) (is) blue in the face (redirected from till she's blue in the face)
till (one) (is) blue in the face
Of something vocalized, for a great or indefinite length of time. You can complain about it till you're blue in the face, but we're going to your grandmother's for Thanksgiving whether you like it or not. They are such strange friends. They'll argue till they're blue in the face, then they'll go out for drinks and be the best of pals.
(do something) till you’re ˌblue in the ˈface (informal) (do something) with a lot of effort and for a very long time without success: You can argue with John till you’re blue in the face, he’ll never agree with you.
References in periodicals archive
A sniper is on the loose which means Nikki (Emilia Fox) can perform post mortems till she's blue in the face
, but it's obvious that the cause of death is still going to be "a fatal bullet wound".