butter wouldn't melt in someone's mouth (English, phrase)
expansion: butter wouldn't melt in someone's mouth
Senses:
glosses: The identified person appears to be benign, mild-mannered, or calm (but with an integral suggestion that, to the contrary, he or she really is untrustworthy, disagreeable, or mean-spirited).
tags: idiomatic
glosses: The identified person is prim and proper, standoffish, cool, or dispassionate.
tags: idiomatic
Forms:
form: butter will not melt in someone's mouth
tags: alternative
form: butter won't melt in someone's mouth
tags: alternative
form: butter would not melt in someone's mouth
tags: alternative