noun; Akin to a fingerprint in your pants, most commonly referred to as a skid or hash-mark.
While doing the laundry, Terri noticed a huge prant on Gerdy's skivvies.
She went to fart a fart but ended up with a prant on her G- string.
Having eaten bum tacos for lunch, Steve and Arlene both ended up with matching prants in their britches.
Even bleach couldn't get the prant out of Donald's bloomers.