Porta Blumpkin 

The act of getting a blow job while taking a shit on the toilet inside a Porta-Potty. Very similar to the plain BLUMPKIN. Just watch out for the blue water.

Why don't you come inside this porta potty and give me a Porta Blumpkin.

Porta Blumpkin by Dominick AKA Snuffy September 10, 2007

Detroit Blumpkin

When a couple is doing a sitting 69, the man takes a shit and the woman is on her period. (Obvious blumpkin + red wings reference)

That is the nastiest girl I know. She did a Detroit Blumpkin. Hell, and her boyfriend is almost as bad.

Detroit Blumpkin by The Rebecca Black Experience August 20, 2011

double blumpkin 

Similar to an ordinary blumpkin but in this case the girl A.C. Slater's the toilet and blows the guy as he upper decks the toilet.

Chad and his girlfriend had to shit at the same time, so to kill two birds with one stone she gave him a double blumpkin in her parents bathroom.

double blumpkin by D-Zell June 23, 2011

Deluxe Blumpkin 

the act of receiving a blowjob while simultaneously taking a dump, peeing, and eating pizza, or maybe cake. if you accomplish this, i'm proud.

To my knowledge, no one has ever received a Deluxe Blumpkin.

Deluxe Blumpkin by simbaluv717 November 5, 2009

Menthol Humming Blumpkin

While receiving a blow job, while taking a bowel movement, the "giver" insertes something into their mouth containing menthol, such as a cough drop, then continues while forcefully humming through there nose.

E-rod, I finally I got that Menthol Humming Blumpkin me and Rat where talking about yesterday! That girl was a real trooper!

Menthol Humming Blumpkin by Mr wood April 29, 2015

pumpkin blumpkin 

The standard blumpkin affair with a twist: instead of the usual mouth hug while taking the browns to the super bowl, she (or he if you're so inclined) dons a jack-o-lantern (preferably of the toothless persuasion) and then blumpkins you to orgasm. It's a seasonal thing - like the bj version of the shamrock shake.

It was Halloween night and I could tell magic was in the air when a jack-o-lantern was giving me head on the toilet, the old "pumpkin blumpkin"

pumpkin blumpkin by steve ryans October 4, 2009

Sloppy Blumpkin 

The act of recieveing a blumpkin with your vomit being used as lubrication.

After rob had thrownup in the stall, stephanie proceded to crawl under the stall getting throwup on herself during the process. She then gave him a sloppy blumpkin.

Sloppy Blumpkin by joabvouabf April 17, 2010