Buttcum is a futuristic cum that will be available in the 2050's where the new "hip" thing will be to buttcum on your spouse and girl/boyfriend which is where people release a bodily fluid from their ass that is a mix between cum and poop but the catch is that ur buttcum taste like the best tasting strawberries in the world. Not just any kind but the kind that everybody loves. It will be a step up from roleplaying and before sex. spean speaner speaning
I wouldn't have sex with Bill but I'd buttcum him.
by RAMS March 20, 2005

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Top Definition
Blowing your load on her bum.
by M.R. July 13, 2003

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Diarrhea
Oh man there's buttcum everywhere!
by Buttcumer March 06, 2010

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cum in the butt
buttcum boiii
by stickitinthewhole May 27, 2016

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n. a word used to describe the semen that leaks out of the butthole when having bareback anal sex; often leaks out of a gay man's butt
After I came in his butt, I opened my mouth and let the butt cum drip inside.

I wanted to fill him with butt cum, but he made me use a condom.
by rybran November 06, 2009

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The Urban Dictionary T-Shirt

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