มองหาคำศัพท์ใดก็ได้ เช่น eiffel tower:
 
1.
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.
โดย Dante Rau 20 กรกฎาคม 2006

คำที่เกี่ยวข้องกับ Upper Decker Double Blumpkin

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2.
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
โดย Roger Podacter 19 กันยายน 2010
 
3.
An event when two couples receive phalacio while defecating in the bowl and in the tank.
"Yo Dawg, did you hear Shaniqua was in a Upper Decker Double Blumpkin' last night?'
โดย mrButters 22 เมษายน 2009