when you fuck on a bed of nails doggy style (usually a blonde, if not a red head). a full porcupine is when u shave her legs after sex (if her legs are not shaved it is only 1/2 a porcupine)
by fuck myster May 26, 2008
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When a guy spikes out his pubic hair, like a porcupine's needles.
Damn Tang, Your porcupine is stabbing my hips again
by the jay April 28, 2005
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Jaspaul why won't you dress up for halloween, you're such a porcupine
by Sabrina's Jerk November 12, 2008
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when haing sex on the beach with a condom on; remove your penis, stick it in the sand and reinsert it into the box.repeat until she bleeds
by Anonymous October 10, 2003
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1. A small, quiet animal with pointy, protective quills on its back to keep it safe from predators.

2. A person, typically a gamer, who is overreacting or lashing out at someone who was not in any way involved in the situation which the "porcupine" is angry about. These people typically play Minecraft, CS:GO, Geometry Dash, or any sport-themed video games.
Definition 1 sentence: "I was poked in the hand from a porcupine I brainlessly attempted to snuggle with."

Definition 2 sentence: "Dude, quit being such a porcupine over Minecraft."
by EliteArchwing February 12, 2017
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When a man has used so much product in their hair that in retirement his hair is permanently spiked backwards giving off the appearance of a porcupine.
by Master bassist November 19, 2011
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