comes from the phrase "if she had as many dicks on her as shes had in her she'd look like a porcupine"
yea that bitch is a porcupine for sure
A female who has had many sexual partners and is known for her promiscuity. This term is derived from the idea that if the female in question had as many cocks growing out of her body as had been in her body she would have the appearance of a porcupine.
"Hey man did you see anabelle in first period, she's got a great ass."
"Yeah, but I wouldn't hit it, I hear she's a mayjor porcupine!"