To resemble a hedgehog, e.g. "Martin Freeman is erinaceous." See also Cute.
Only known scaly mammal, a fact that makes them both super cute and widely trafficked.
He's your average desk jockey, the guy you pass in the hallway everyday. His work is no better than yours, he's just another Keyboard-Slinging Sam. See also Office.
For those naggy and annoying siblings, classmates, spouses, etc.