blot your copybook Meaning in the Cambridge English Dictionary
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Meaning of “blot your copybook” in the English Dictionary

"blot your copybook" in British English

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blot your copybook

UK to do something that makes other ​peoplerespect or ​trust you less: I really ​blotted my ​copybook by ​missing the ​meeting.
(Definition of blot your copybook from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “blot your copybook”
in Chinese (Simplified) 玷污自己的名声…
in Chinese (Traditional) 玷污自己的名聲…
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