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The act of auto-fellatio whilst in the throes of defecation.
Joey was so trashed last Friday that while he was dropping a deuce, he decided to give himself a Slumpkin, passed out, rolled forward and woke up covered in his own shit.
by brownnoser October 29, 2014
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Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
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2
The natural evolution of the blumpkin. This entails having sex while taking a shit.
Alex- Last night I was with Elizabeth, and I had to take a shit.
Collin- So what did you do?
Alex- I suggested a blumpkin.
Sean- And....
Alex- She didn't want to give me head.
Collin- So....
Alex- I got a slumpkin.
Sean and Collin- YOU DOG!
by D.S.C. May 11, 2010
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3
The act of masturbating on the toilet while squeezing out a Cleveland Steamer. AKA, the Self-Blumpkin.
Melvin would often sneak into the bathroom for a quick slumpkin to beat the office dullard.
by BaconQuest February 13, 2005
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4
while taking a large, much needed dump, you decide to jerk off.
what's taking him so long in the bathroom? a slumpkin perhaps.
by highfive March 07, 2008
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5
Gettin a blumpkin (head on toilet) while watching Slum Dog Millionare
"Dude, lindsay gave me a slumpkin"

other guy- "shes quite the crack whore"

first guy-"fuck it lets deface the local Mcdonalds by writing wiener on the wall next to a dick
by fagelerino April 30, 2009
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6
Sumpkin- The act of a female pleasuring a man's asshole with her tongue while he urinates.
"Dude i asked Angie for slumpkin tonight."
by JohnnyPotSmoker69 July 27, 2009
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