Knuckle-Butter

The peanut butter that ends up on your knuckles when your knife/spoon is shorter than the jar.

This tiny plastic knife is no match against that big ass jar of Jiff. Got me covered in the knuckle-butter...

by Grandmaster Dave November 27, 2017

knuckle butter

Noun, the slimy substance that seeps out from between the fingers of a closed fist after a person has ejaculated in their own hand.

Jack used a tissue to wipe the knuckle butter off of his hand after he jacked off.

by Bentrok May 9, 2006

The way your knuckles look after eating a popcorn from the bag. "usually dark yellow"

i was riding my bike and noticed i had Butter Knuckles

by tophercat9 July 11, 2010

the way your knuckles look after eating popcorn from the bag. (: which is usually this dark yellow color.

i was riding my bike innocently one day, then i suddenly realised i had butter knuckles!

by tophercat9. July 11, 2010

When another person, or animal, licks peanut butter off your balls while you jerk off.

by Britt Charnock March 6, 2017

When you fist a girls asshole then switch to her pussy and the butt/pussy juices mix to create a tan frothy cream.

"After I fisted my girls butt i switched to da pussy, my wrist was drippin with knuckle butter son!"

by IAbmx May 12, 2015