Definition of “don't you dare” - English Dictionary

british dictionary

“don't you dare” in British English

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don't you dare

informal

C2 used to tell someone angrily not to do something:

"I think I'll just walk my dirty shoes over your nice clean floor." "Don't you dare!"
Don't you dare go without me!

(Definition of “don't you dare” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“don’t you dare!” in American English

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don’t you dare!

infml I will be very angry at you if you do:

"I’m going to tell Billy what you said about him." "Don’t you dare!"

(Definition of “don’t you dare!” from the Cambridge Academic Content Dictionary © Cambridge University Press)