What is Upper Decker Double Blumpkin?
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.
See
Random Words:
1.
eavesdropping or listening in on someones conversation that you are not a part of.
"That dude over there is straight up earhustlin..