The Great Blumpkin 

As was foretold by Linus in It's the Great Blumpkin Charlie Brown! It is the king of all blumpkins and can only be had on Halloween night. According to Norse folklore, it is the best blowjob that you can possibly get while sitting on a toilet and taking a shit.

Rick: Yo, Sal, it was halloween last night, did the Great Blumpkin show up?
Sal: Yeah, i had like three calzones and then I wanted to take a shit but she wanted to get kinky. Let's just say The Great Blumpkin arrived on schedule
Rick: Sick
Sal: Ya, totally fuckin sick

The Great Blumpkin by Ichiro Tomlinson May 5, 2010

country blumpkin 

a country blumpkin is a variation of the blumpkin, where the recipient of the head giving is sitting in an outhouse instead of a toilet (and the person performing the fellatio is usually a sister or a cousin).

Cletus: "Ellie May, come out to th' shitter 'n give me a country blumpkin!"

Ellie May: "Well shit, I already gave Paw a country blumpkin! You'll have to wait 'til after supper!"

country blumpkin by GoldTeefs September 9, 2006

Backdoor blumpkin 

Cumming in a woman's ass and making another woman eat the cum out of her ass

I just had a threesome and i gave the ugly bitch a backdoor blumpkin

Backdoor blumpkin by akblumpkin May 8, 2010

mile high blumpkin 

The act of getting a blumpkin while doing an upper decker

Hey man wanna leave an upper Decker here? Yea buddy but get me one of them whores first. Wait what are you gonna do? A mile high blumpkin dumbass!

mile high blumpkin by high performance 5 December 1, 2011

Double Upper Decker Double Reverse Blumpkin 

The unspoken act of a female performing an upper decker, whilst a male counterpart carries out a defecation in the lower (relative to aforementioned upper deck) deck, whilst eating out the aforementioned female.

Gary and Bruce were both really excited to partake in the sensual act of a Double Upper Decker Double Reverse Blumpkin, but neither one had eaten a large enough meal to carry out the act.

Double Upper Decker Double Reverse Blumpkin by doubleupperdeckerdoublereverse October 13, 2019

Mr. Hankey blumpkin

Getting a blumpkin on Christmas (Mr. Hankey is the “Christmas Poo” from South Park). What is a blumpkin? One who receives a blumpkin gets a blowjob while defecating on the toilet. What a way to celebrate Christmas.

So happy for all the presents that Santa brought, Mrs. Smith decided to reward him with milk, cookies and a Mr. Hankey Blumpkin for his efforts.

Mr. Hankey blumpkin by blumpkin.com April 25, 2011

Oriental Blumpkin 

This is the act of giving/receiving a blumpkin, from a girl or a boy, while the giver is blowing the receiver the giver must vomit all over the receivers cock and lap, induced by choking on the receivers cock. Typically after an Oriental Blumpkin commences the fellating party puts their hand in front of their mouth and makes a racially stereo-typical Asian laugh.

Yo Johnny caught an Oriental Blumpkin from that swamp donkey last night... she puked all over him.

Oriental Blumpkin by Roberto TM November 18, 2007