Meaning of “all hell breaks loose” in the English Dictionary

british dictionary

"all hell breaks loose" in British English

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all hell breaks loose


If all hell breaks loose, a situation suddenly becomes violent and noisy, especially with people arguing or fighting:

One policeman drew his gun and then suddenly all hell broke loose.

(Definition of “all hell breaks loose” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)