Duck Butter 

noun- the sweat that collects under a guy's ballsack that gives off a rank smell, much like yeast.

Man, this duck butter is making my balls stick to my leg!

Duck Butter by Kim -The Angry Dragon- February 17, 2004

duck butter 

grease that gathers on the region between a mans scrotum and anus after he runs a marathon

this duck butter is so thick that i could spread it on toast

duck butter by ballz October 12, 2003

duck butter 

sweaty film produced on a man's balls and taint after much physical activity on a hot day.

"get out the gold bond, Ed, after walking clear across campus the ol' duck butter is getting thick!"

duck butter by total playa June 1, 2004

Duck Butter 

The buttery substance that forms on the gouiche of adult men, when combined with with skidmarks it forms the special "spicy" variety of Duck Butter.

Dude, I just work out for three hours, now I have some serious Duck Butter buildup.

Duck Butter by Douchebag4203 May 25, 2007

duck butter 

A cheesey (and profoundly smelly) secretion that collects on the backside of an unwashed scrotum

John was surprised to find that he liked the taste of DUCK BUTTER on his morning toast.

duck butter by JTB October 6, 2003

duck butter 

the sweat that accumulates in and around the ass crack.

i was rocking so much duck butter that i slid off of the toilet.

duck butter by mwolfe February 11, 2004

Duck Butter 

Nothing in relation to the sweat glands on ones crotch or anus-y areas. Instead, Duck Butter is the secretion on Ducks wings and feathers so that they may still fly even after being in water.

Child: Mommee, why canz teh duckkee stiww fliiiy????
Mother: Because of teh duck butter, child.

Duck Butter by Brocke July 6, 2005