When your asscrack itches for any number of reasons, and you have to itch it through your pants, thus leaving a small shitstain on your underwear.
“Man, my ass was itchin this morning from last night’s Mexican food. Left a chocolate skid mark because i was in a meeting and couldn’t hit the bathroom!”
by ShrinkDoc August 22, 2019

When you don’t wipe your ass after a shit and accidentally leave a skid mark on a seat of someone else’s car
by Mr Follow Through January 16, 2024
