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English definition of “not know sb from Adam”

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not know sb from Adam

informal
to have never met someone and not know anything about them: Why should she lend me money? She doesn't know me from Adam.
Translations of “not know sb from Adam”
in Chinese (Traditional) 根本不知道(某人),與(某人)素不相識…
in Chinese (Simplified) 根本不知道(某人),与(某人)素不相识…
(Definition of not know sb from Adam from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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