The frothy mixture of lube and fecal matter that is sometimes the by-product of anal sex. Better known as santorum.
After I finished your mom last night, her duck butter stained the sheets.
by Bok May 9, 2006
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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
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A broad term to describe any sort of deposit, build-up, slime, grime or sludge with a likeness to feces or slugs, the consistency of a glob of grease or jello, and colors from light beige, neon orange, to black.
"I went to open my car door and there was someone left some duck butter on the handle."

"When I walked into the bathroom, it smelled like Hoboken and there was duck butter splattered on the mirrors and on the ceiling."
by baconn August 30, 2012
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Takeshia refused to give head to Tyrone because he had not pulled back is foreskin in a week.
by Richard Black February 27, 2005
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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
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Duckbutter differs from Smegma but is
pretty much the same. The smelly cheesed
odor that builds up between vagina as
well as the penis. Due to bad hygiene
mostly but still should be under control
by the tales I get from people who shower every 5 minutes. I pity those dudes but if you hafta you hafta-Rich
by Frank Musselwhite August 14, 2004
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