When a man defecates in the top tank of the toilet while receiving oral sex from someone pooping and sitting backwards on the seat.
"Hey girl, my dick is real hard and I noticed that we are both have been farting a lot. Perhaps we should A.C. Slater-Upper Decker Blumpkin"
by Juan Perico March 7, 2009
This act requires both a male and female to perform. A male takes a crap in the upper tank of the toilet while performing a delicate balancing act, and getting his cock sucked, as the female takes a crap on the toilet facing the wrong direction. Much like how AC Slater sits in a chair when he's at the Maxx.
I got my girlfriend so drunk that I was actually able to convince her to perform the Upper Decker Blumpkin AC Slater with me while my buddy hid in the closet and video taped the performance!
by GivinHer TheBusiness December 4, 2007
When a man is taking a shit in the toilet tank while a female is sitting on the bowl reverse cowgirl taking a shit and sucking his dick then once they are finished they preform a reverse 69 licking each others assholes clean.
by tootalljen89 June 3, 2011
The art of recieving a blowjob from a woman while she is shitting in the bowl of a toilet and you are taking a shit in the tank/cistern of the same toilet at the same time.
by vaaleainhoinen January 26, 2009
Sexual act requiring 4 people. Person 1 sits backwards on the toilet while defecating and gives a blowjob to person 2, who is defecating in the tank of the toilet. Person 1 also gives hand jobs to persons 3 and 4, who are standing on either side of the toilet. Person 2, 3, and 4 high five above person 1's head.
The combination of the double blumpkin supreme, the upper decker, the pterodactyl, and the eiffel tower
The combination of the double blumpkin supreme, the upper decker, the pterodactyl, and the eiffel tower
Tom: Dude, I saw the nastiest thing, this chick was doing the "double blumpkin upper decker dactyl tower" at that party on Saturday night.
Ted: Wow she must be a freak!
Tom: Yeah, I almost puked!
Ted: Wow she must be a freak!
Tom: Yeah, I almost puked!
by noey November 29, 2013
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.
by doubleupperdeckerdoublereverse October 14, 2019
One participant is sitting on the upper deck of a Toto Toilet while your partner is sitting on the lower deck; with the seat warmer on and the water blasting against their genitals. The upper decker is receiving Fellatio while both parties are passing a Cleveland steamer.
Guy 1: Gawd! Julia is such a basic bitch, i cannot stand her.
Guy 2: Sure, but at least her parents are rich enough to afford a Toto Toilet.
Guy 1: So?
Guy 2: She totally gave me a Steamy Upper Decker, Double wet Blumpkin
Guy 1: Legendary!
Guy 2: Sure, but at least her parents are rich enough to afford a Toto Toilet.
Guy 1: So?
Guy 2: She totally gave me a Steamy Upper Decker, Double wet Blumpkin
Guy 1: Legendary!
by Throbbin-Rockin-Rod January 24, 2018