1 definition by John15

Butter that has been left out on the kitchen table all day and turns to mush. It's very good for spreading but often gets very messy.
Dude 1: "Man this butter is rock hard, I can't spread it AAAAHHH!!"
Dude 2: "Don't worry man I got some bamatter butter this stuff spreads so nice"
by John15 May 15, 2012
Get the bamatter butter mug.