( informal ) suddenly there was a lot of noise, arguing, fighting or confusion :
There was a loud bang and then all hell broke loose.
( informal ) suddenly there was a lot of noise, arguing, fighting or confusion :
There was a loud bang and then all hell broke loose.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005