butter wouldn't melt in someone's mouth

idiom

chiefly British
used to say that a person who appears to be innocent, sincere, or kind is really not

Dictionary Entries Near butter wouldn't melt in someone's mouth

butterwort

butter wouldn't melt in someone's mouth

buttery

Cite this Entry

“Butter wouldn't melt in someone's mouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/butter%20wouldn%27t%20melt%20in%20someone%27s%20mouth. Accessed 15 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!