DO STH TILL YOU ARE BLUE IN THE FACE


Meaning of DO STH TILL YOU ARE BLUE IN THE FACE in English

( informal ) to try to do sth as hard and as long as you possibly can but without success :

You can argue till you're blue in the face, but you won't change my mind.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.