Someone who defies categorization, especially during high school. Almost grunge, almost hipster, almost preppy, almost nerdy, edgerunners can fit in anywhere.
Fucking awesome. You want to be an edgerunner.
"Dude, I give up. That girl's not a hipster, not a prep, not grunge... but she's still so goddamn cool."
"You've got yourself an edgerunner there, mate. Get on it."
person1: I heard he actually became a volleyball player.
person2: yea, his whole life everyone was telling him he couldn't
person1: yea, he's an Edgerunner alright