Meaning of “tar sb with the same brush” in the English Dictionary

british dictionary

"tar sb with the same brush" in British English

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tar sb with the same brush

to think that someone has the same bad qualities as another person:

Because they worked so closely in the same department, John was tarred with the same brush as Tim.

(Definition of “tar sb with the same brush” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)