The act of defecating while receiving a blow job.
Blumpkin Haiku:

Stinky poo, deep throat\
Get on your knees now baby\
Man, I love bumpkins\
by MC Flunk August 25, 2008
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a blumpkin is when a girl gives a guy a blowjob when he is taking a shit.
blumpkin
by branden areia February 11, 2009
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the act of giving a blowjob to someone while he is taking a shit
Holly gave kyle a blumpkin in her bathroom.
by Smoochy da Ryno September 29, 2008
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Its when a #A chick gives you head while your sittin' on the toilet takin' a shit!" -Harold and Kumar: escape from Guantánamo Bay.
Chick-" Hey you want a Blumpkin?"
Guy-" Whats a Blumpkin?"
Chick-" Ugh never mind"
Guy-"Damn!"
by NiXONs Bak July 29, 2009
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The act of fellatio performed upon a male who is concurrently engaging in the act of defecation.
1: Carter received a blumpkin from Paige!
2: Gross!

(now you have a word to rhyme with pumpkin in your poetry)
by Helen Leichner August 3, 2009
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When Hans had eaten too much Mexican food one evening, Olga had no choice but to give him a blumpkin.
by snikt April 28, 2008
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when a girl gives you head while you're sitting on the toilet taking a shit.
Rosenberg:Hey Kumar i went to that asian party.
Kumar:Cool! What'd you do there
Rosenberg:I schupted Cindy Kim.
Kumar:Really?
Rosenberg:She gave me a blumpkin
by §nake January 13, 2010
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