Sewage Booty Share definition Flag Where you sit down for long periods of time and you get up and you notice your pants sticking to your butt and a pungent odor. I was sitting down for an exam and I noticed I was showing signs of sewage booty. Sewage Booty by kelly girl September 10, 2009 0 0 Get merch Get the Sewage Booty mug. Buy Now — $32.95 See more merch