( BrE ) to do sth unpleasant as quickly as possible, so that it is finished :
Why not tell her you're quitting and have done with it?
( BrE ) to do sth unpleasant as quickly as possible, so that it is finished :
Why not tell her you're quitting and have done with it?
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005