The build-up of sweat and dead skin congealed into a buttery substance. Generally found within deep fat crevices i.e. - knee or elbow area.
It's so hot out, I could slather a whole loaf of bread with my knee-butter.
I need to jump in the shower right quick before the knee-butter begins to solidify.
I need to jump in the shower right quick before the knee-butter begins to solidify.
by Nitzy Apple Butter March 8, 2021

by Ufhdbdjsjxb May 8, 2019

by Troy1983 March 1, 2018

When your asshole is so lubricated from eating greasy food that you don’t even feel your farts slip out until you get hit with a toxic fart cloud.
by Farter2018 September 23, 2018

In prison, inmates lubricate their arsehole with butter before they see a visitor bringing them contraband. It ensures a comfortable insertion of said contraband.
by Charliebynature April 9, 2022

When you stick a finger in your butt, sexual or not, and you leave it there until your finger turns a dark shade
Just got a new bath bomb so it’s a good night to be roasting the butter while Peter Gabriel plays softly in the background with candles lit and fresh aromatics.
by annmrtr February 2, 2018
