1. (noun): oral sex given to a male partner while he is defecating on a restroom toilet.

2. (noun): a large, fat black man wearing an orange goose down parka. contraction of BLack and pUMPKIN.
1. "I took her to the shitter and got a blumpkin. It was greasy though and I think I splashed her chin."

2. "Ha Haaaaaaaaa. Yooooooo! Hey, yo! look at that Blumpkin ass nigga."
by Deroc September 16, 2008
the act of recieving a blow job while taking a crap
goldstein: last night i ended up at that asian party and shtuck cindy kim!
kumar: shut the fuck up are you serious?
goldstein: yeah man, she even gave me a blumpkin!
Kumar:whats a blumpkin?
goldstein:its when a girl gives you head while your on the toilet teaking a hit!
by blither blither blither July 10, 2008
the act of recieving a blow job whilst a taking a huge dump!
1. Dego:"Where is Alex tonight?"
Jordan:"Smokin the reefer"
Dego:"Silly Blumpkin"

2. "Damn after alex fell asleep, I was taking a fat shit and his sister kristen came in and gave me a blumpkin. Damn she can suck a mean dick"
by The Dego December 30, 2005
According to Wikipedia, The Howard Stern Show.
After typing in blumpkin on Urbandictionary, I looked for a more extensive definition on Wikipedia.
by Sir, Yes January 29, 2008
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
recieving oral while taking A crap.
Man gets home from work feels A movement, goes in to the john to relieve himself when woman comes in to give him a blumpkin.
by Straightliner April 21, 2008
when in the persuit of taking a shit a girl gives you head while ur are taking care of business on the toilet.
after that huge dinner the other night, i got a blumpkin and guess what? there was an island comin outta the wataaaa
by phillies finest April 06, 2008

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