be sb's middle name Meaning in the Cambridge English Dictionary
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Meaning of “be sb's middle name” in the English Dictionary

"be sb's middle name" in British English

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be sb's middle name

informal to be a ​quality that is an ​importantpart of someone's ​character: Don't ​worry, I won't ​tell anyone. Discretion is my ​middlename.
(Definition of be sb's middle name from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “be sb's middle name”
in Chinese (Simplified) 是(某人的)突出个性…
in Chinese (Traditional) 是(某人的)突出個性…
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