( informal ) to end a telephone call by suddenly and unexpectedly putting the telephone down :
Don't hang up on me—we must talk!
( informal ) to end a telephone call by suddenly and unexpectedly putting the telephone down :
Don't hang up on me—we must talk!
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005