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English definition of “butter wouldn't melt in sb's mouth”

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butter wouldn't melt in sb's mouth

used when someone looks as if they would never do anything wrong, although you feel they might: Tommy looked as if butter wouldn't melt in his mouth.
Translations of “butter wouldn't melt in sb's mouth”
in Chinese (Traditional) (某人)裝老實相…
in Russian выглядеть тихоней…
in Turkish masummuş gibi görünmek, kendini çok iyi gizleyebilmek…
in Chinese (Simplified) (某人)装老实相…
in Polish ktoś by muchy nie tknął, ktoś ma minę niewiniątka…
(Definition of butter wouldn't melt in sb's mouth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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