A fork of Rural Dictionary
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."