When taking a dump with such tremendous force that it actually pushes the crap up into the tank from the bowl.
by Chief Brody April 8, 2010
Get the Reverse Upper Decker mug.Taking a dump in the toilet tank while having your dong slobbed by someone sitting reverse on the toilet while they are dumping
by Dick Head Buckaroo September 20, 2015
Get the Upper Decker Reverse Blumpkin Double Dump Out mug.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 13, 2019
Get the Double Upper Decker Double Reverse Blumpkin mug.Recieving a blumpkin while taking an upperdecker with the person performing the blumpkin turned around backwards on the toilet sucking you off and simulaneously taking a shit.
That was some fucked up shit last night, I can't believe your mom gave me a reverse upperdecker blumpkin.
by don von donnie March 17, 2008
Get the reverse upperdecker blumpkin mug.