Shit Wrinkle Share definition Flag A power phrase for skid marks in your shitter. A.k.a. the stain left in the end over a toilet bowl after defecating. "Who left the shit wrinkle in the jacks, I'll punch who ever it was in the barse!", chortled Billy Shit Wrinkle by soucerous booch January 1, 2010 0 0 Get merch Get the Shit Wrinkle mug. Buy Now — $32.95 See more merch