Definition of “be a one” - English Dictionary


“be a one” in English

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be a one

UK old-fashioned informal

to be funny in a slightly rude way or in a way that shows no respect:

"He told me I couldn't have the job and I told him I never really wanted it in the first place." "Ooh, you are a one."

(Definition of “be a one” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)