When you're getting a blumpkin but the person sucking your dick is upside down so you can 69 but they also poop at the same time... this means their poop is either going to slide down their back and hit the floor, fall forward into your face while you suck and/or lick their genitals OR you'll get a diarrhea fountain all over their back and your face.
I wanted him to double blumpkin 69 me but he said he wouldn't do it unless I had diarrhea for the fountain effect.
by BlumpkinFiend6669 October 15, 2022
The sexual act of sitting on the toilet backwards placing a computer on the tank lid while shitting and masturbating to the person whom you are skyping with.
by Los Muerto Diablos January 1, 2013
the act of receiving a blow job while taking a shit in the top of the toilet (know as an upper decker). at the same time the girl is reverse straddling the toilet seat, sucking your cock, while taking a shit.
Guy: "Hey I have to take a shit."
Girl: "So do I!"
Guy: "Want to give me a super double blumpkin?"
Girl: "Hell yes, let's go."
Guy: "I could really go for a super double blumpkin right now."
Girl: "Isn't that kind of gross?"
Guy: "Trust me, you will enjoy it."
Girl: "Hey, do you want me to give you a super double blumpkin right now?"
Guy: "Of course I do!"
Girl: "So do I!"
Guy: "Want to give me a super double blumpkin?"
Girl: "Hell yes, let's go."
Guy: "I could really go for a super double blumpkin right now."
Girl: "Isn't that kind of gross?"
Guy: "Trust me, you will enjoy it."
Girl: "Hey, do you want me to give you a super double blumpkin right now?"
Guy: "Of course I do!"
by Five-StarFratStar August 24, 2011
The act of sitting on the top part of a toilet and shitting while getting head by the girl who is strattling towards you on the bottom seat while also taking a dump at the same time.
The raunchiest act of the famous "blumpkin" to the next extreme calling it the Upper Decker Double Blumpkin.
by Dante Rau July 20, 2006
When a man is taking a dump in the tank of a toilet while a female is sitting on the bowl taking a dump while facing him and performing oral sex on him.
Yo I was taking a shit and Tracy want to give me a blumpkin but she also had to take a shit so we did an Upper Decker Double Blumpkin
by Roger Podacter September 19, 2010
One person sits on the toilet while the other person stands above him. The person sitting is giving a blowjob to the standing person while both are taking a shit.
I walked in the public restroom and caught my roommate and some stranger doing the upperdecker double blumpkin deluxe.
by JScrub619 March 29, 2016
The very intimate act in which the male lover delicately removes the top cover on the porcelain tank of a toilet. Next he will mount the the tank and begin to defecate. Now the female lover gently sits on the toilet seat facing her male partner. The act begins when she also compenses to defecate while orally accepting his genitalia.
I knew she was the ONE when she pulled me into the hotel bathroom and introduced me the amazing upper decker double blumpkin.
by INFDOC September 10, 2021