A film in your ass thats so thick you can spread it like butter
Man i havent showerd in a few days and i got some sick DUCK-BUTTER going on all up in my butt! wanna see?
by Gabriel "GeEBaH" Labody August 8, 2006
Get the Duck-butter mug.
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.
by Brocke June 26, 2005
Get the Duck Butter mug.
The Sweat around ones balls causing them to stick to the sides of ones legs
I've got a killer batch of Duck Butter in my pants
by Christopher Brown September 21, 2005
Get the Duck Butter mug.
The sweat that forms beneath a man's testicles and between the cheeks of his butt.
Dave: So man, how'd your date with Cindy go last night?
Steve: Oh bro... it was great! I gave her some of my Duck Butter.
Dave: ...You're one sick fuck, Steve...
by Diatome May 11, 2009
Get the Duck Butter mug.
The sweaty crud that accumulates in between your ballsack and your inner thigh
Dang man I can hardly walk. This duck butter keeps squishing in my pants

Lol just scrape it out with a spoon
by Men @ work December 1, 2018
Get the Duck butter mug.
Duck butter has been infamously claimed to be the 8th wonder of the world. The term "duck butter" was coined under the auspices of ducks hunters. Duck butter is the result of wearing hunting waders all day that leads to build up sweat, grime, gun powder, flatulent debris and the occasional pubic hair under ones scrotum traveling all the way back to the anus
"man, the only thing Robby has going for him in the duck blind is his uncontrollable build up of duck butter."

"After a long day of wearing waders out duck hunting, despite Chris's film of duck butter he still landed a Fupa queen."

"I think those Irish car bombs last night made my duck butter worse today"
by FUPA Queen January 22, 2012
Get the Duck Butter mug.
Duck butter is the sweat on a guy's balls after exercising and stuff.
"OMG dude! you have some duckbutter dripping through your pants!!"
by Kyle M November 29, 2003
Get the Duck Butter mug.