When a guy is getting his dick sucked by a girl while he's on the toilet taking a shit
Bob is taking a shit at home when his wife walks in and starts sucking his dick.
by Dil SHmead January 8, 2004
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A plumpkin is the act of receiving oral sex while taking a dump. Could be considered gross, but the feeling achieved during orgasm is really pulsating.
My buddy got his first plumpkin last night and nearly busted his prostate!
by Dave April 1, 2005
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A girl giving a guy a blow job while the guy is taking a crap
While in deep constipation, John received a plumpkin from susan.
by Mangs May 7, 2006
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Plumpkin is a variation of the more well known term blumpkin. What differentiates a plumpkin from a blumpkin is that the woman performing the oral sex on the man who is taking a shit is morbidly obese, or plump as some would say.
That porker gave me some awesome plumpkin this morning.
by Demoneque August 8, 2006
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The delicately balanced art of getting your cock sucked by a fat girl while taking a dump.

ref: blumpkin

After finishing a fifth, I woke up on the toilet to Timmy's morbidly obese sister giving me a plumpkin.
by Calitri November 16, 2007
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The act of receiving a blumpkin from a plump woman or man.
It was slim pickings at closing time, so instead of a blumpkin, I had to settle for a plumpkin.
by Tommy Gugliata May 25, 2010
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