red parenthesis
The crescent shaped abrasions that form around a persons asshole from not wiping well enough or anal leakage.
Guy #1: Look at the way Larry keeps picking his seat over there. Guy #2: Yep...not only does he have stinky fingers I'll bet he has skid marks in his underpants too! Guy #1: The idiot probably has red parenthesis around his asshole and just needs a shower!