(N.) 1. A thin smearing of shit in your underwear or the stain left from the thin smearing of shit in your underwear usually caused by excessive farting, an improperly wiped ass, or a wedgie in a dirty ass. 2. A term used to describe someone acting like an asshole.
1. Eddie Cruz has skidmarks in his chonies! (undies.) Gross!
2. Quit acting like a total skidmark, fag!
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