A variation of the blumpkin where Brian gives oral sex whilst evacuating his bowels, thus utilizing both alpha and omega of the ailimentary canal simultaneously.

Or in laymans terms, when Brian sucks a cock at the same time he is also beaming Schatner off the Enterprise....the sucker is the crapper.

Note to Brian: The money shot should occur at the precise moment of final fecal release, thus synchronizing anal closure with ejaculation.
While Brian was taking his monthly shit, Eli whipped out his cock and got a BJ from him at the same time. Ahhhhhh...... he was the only man he ever knew that would give a reverse blumpkin.
by Brian and Eli forevs February 3, 2018
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When a girl sits down on the toilet to take a nasty shit and blows a guy while shitting her ass out.
Man I just got a Reverse Blumpkin. That bitch shit her ass out while giving me head!
by BieberHole6969 December 20, 2014
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When you're peeing in a toilet while she's/he's eating your ass
I decided to try a reverse blumpkin the other night and then I s*** in her mouth.
by Encourageable October 9, 2020
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Instead of blowing someone when they’re on the toilet, you eat someones ass when they’re pissing at a urinal
Skyla: I gave Remi a nice reverse blumpkin last night
Mateusz: Damn he must’ve cum into the urinal
by Big d1ck bo1 December 8, 2021
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When a woman is taking a shit and her man is fucking her face.
I gave Aaron a reverse blumpkin this morning before work. He'll have a great day!
by Reverse Blumpkin December 1, 2019
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Modified Eiffel Tower while male receiving oral is taking a dump.
After Todd’s morning coffee he had to move the Eiffel Tower to the bathroom for a Pumpkin Dunkin Blumpkin.
by ToDDONUTS February 18, 2023
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a group of mythical creatures that only few men get to experience that ride fast on motorcycles
Those Brute Force Blumpkins we’re flying on their bikes.
by Bent-it April 18, 2022
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