A layer of buttery cheese commonly found on a sorostitute's back, just above her waist that usually shows signs of dunlap disease and may or may not be accompanied by a large stripper tattoo.  This type of fatback is mostly caused from drinking beer and eating large pizzas all by themselves.  Possibly a major portion of their freshman fifteen.
by JRatt June 30, 2005
Get the fatbackmug. A referal of a females backside or booty, appealing to the opposite sex, which is man. (No Males should have a fatback. Females are strickly forbidden to use this world unless your gay).
by neiman July 6, 2004
Get the FatBackmug. by fatback August 17, 2004
Get the fatbackmug. by Leanne January 20, 2004
Get the fatbackmug. by BUNNe's Sister, BUNNe, and an honorable mention to Wotan July 28, 2008
Get the fatback choppermug. A former hangout in Northeastern PA across from Camp Cockblock where good times and all around shinannigans took place.
by Mr.Mulch January 9, 2010
Get the fatback mountainmug. The three racers in Mario Kart 64; DK, Wario, and Bowser, that are scary to get around or hard to pass. If a smaller racer runs into the fantasses, they spin out. So called because of their wide backs.
by anonymous July 17, 2020
Get the Fatbacksmug.