Top definition
The classic act of growing out your pubic hair to it's full capacity. Then, using extreme amounts of hair-gel, spiking the pubic hair into several sharp points. Finally culminating in doggy-style sex and jamming your sharp pube spikes in the chick/dude's butt-hole.
Man 1: "Hey, why are you buying all that hair gel? You have a shaved head.

Man 2: "Because I'm gonna give your sister a Pennsylvania Porcupine tonight"
by snakedog69 December 15, 2009
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