picklook as if butter wouldn't melt in one's mouth . look as if butter wouldn't melt in one's mouth See: BUTTER WOULDN'T MELT IN ONE'S MOUTH. No categories: add yours Source: A Dictionary of American Idioms 'look as if butter wouldn't melt in one's mouth' on video ✔Фразеологизм To look as if butter wouldn't melt in one's mouth= Прикидываться невинной овечкой. sort: relevance, mode: exact match, q: "look as if butter wouldn't melt in one's mouth", maxResults: 4, videoEmbeddable: true, videoSyndicated: true, safeSearch: strict, type: video Subscribe to: American IdiomsEnglish Slang Leave my opinion