don't you dare

mainly humorous

Definition

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)

Synonyms and related words:

If a problem preys on your mind, you think about it and worry about it a lot

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