The original expression was “Butter wouldn’t melt in his/her mouth”. What this means is when you find someone, a child or animal who is quite obviously responsible for some misdemeanour and they deny it and look at you with an expression of angelic innocence and, in spite of all the evidence continue to lie, that’s when you say that Butter Wouldn’t Melt.
“It wasn’t me that broke the jug, it was the dog.”
“We haven’t got a dog.”
“It came in from outside, it wasn’t me.”
“Oh yeah, and I suppose butter wouldn’t melt!”
“We haven’t got a dog.”
“It came in from outside, it wasn’t me.”
“Oh yeah, and I suppose butter wouldn’t melt!”
by AKACroatalin April 10, 2019