Full saying is “Butter wouldn’t melt in his/her mouth” and it is usually sarcastic and means that the person is whiter than white and wouldn’t ever say or do the wrong thing

Butter Wouldn T Melt

It’s a very old phrase meaning someone’s personality is cold, prim and proper, so they wouldn’t even have the warmth to melt butter. These days, though, if you hear it said about someone it usually means they seem so innocent and pure, but it’s meant sarcastically. It’s an interesing question-here’s a link which explains it well- http://www.worldwidewords.org/qa/qa-but3.htm

Cut in butter Recipes such as piecrusts, biscuits and scones direct to “cut in” the butter into the flour. Butter for use in these recipes should be cool and firm. Cut the butter into approximately ½-inch cubes before adding to the flour. To get the light texture that these types of recipes require, the butter should be “cut in” with a pastry cutter, or 2 knives, or very cautiously with a food processor — just long enough so the mixture resembles a course meal. Over mixing will cause the dough to become coated with fat and it will be unable to absorb sufficient moisture, resulting in a tougher, less flaky piecrust or biscuit.

It tends to be used after a child has been naughty or someone has been rude or obnoxious but at that time in an angelic state such as playing very sweetly or sleeping etc I have never found it to be an offensive term as everyone gets cross or irritable at some point and all children miss behave at some time but like I said used after an incident

I’ve always thought that such a person gave the impression they’re cool and have everything under their control. But I have to admit I don’t know the real meaning behind this expression. Someone please enlighten us.

I’ve heard it said about someone’s attitude, as in being really cold and indifferent. Also I’d seen this in a blog, where I presumed the author meant it in the same way. I can’t be really sure without the context.

It means they act fake like they can’t do no wrong when really they can they act all inocent.

like..

” She’s daddies little girl, Butter wouldnt melt in his eyes “

They have a look of innocence about them despite being guilty as sin!

it’s too cold