butter wouldn't melt in someone's mouth

Meaning: Someone looks innocent or proper, but probably is not.

Language: English

Literally: (Already vivid in English)

Example: “She looks as if butter wouldn't melt in her mouth, but she started the food fight.”

Category: Food & Drink

Origin: The person seems so cool and demure that butter would not even melt in their mouth. The saying is recorded in English in the 16th century.

Equivalents in other languages

More idioms — Food & Drink

More English idioms

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