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.

The act of suctioning dildos to one's body and have 4-6 large women pleasure themselves in simultaneous motion.

Where you and your girl are having sex with a porcupine, a game is played where whoever by the end of the sex has the most quills in the ass is the winner. The winner usually gets bragging rights to their parents as the intercourse is usually insestual.

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.

a small prickled animal who resembles that of a hedge hog. You are all dirty minded. It is an animal, don't ruin it for the rest of us. hmph.

A woman that has really been around

comes from the phrase "if she had as many dicks on her as shes had in her she'd look like a porcupine"

The act of taking a live porcupine (also called the quill pig) and throwing it at an unsuspecting passerby. It is frequently used as a method of revenge on someone who has recently committed a grievous offense.