Top Definition
when a male homo-sapian rubs his sexual organ (the disco stick) causing seminal fluids to flow through his semenal vessels which leaves him ejaculating all over his dreadlock-like pubic hair and dosn't "clean up his mess" the semen then hardens to form a frosty and flaky-like coating over his pubic hair and creating what is known as a crusty porcupine.
joseph was watching darius his partner bend over in a too-too and then joe jerked off causing him to cum, he then fell asleep and the next morning he woke up to an early christmas suprise; the crusty porcupine.
by creepy grandad from sector E April 13, 2011

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