Someone you assume is going to be way uncool (because they are nerdy, older than you, etc.) but who is, in fact, even cooler than you.
Dude, so this kid's got a gun on the cashier, right, but then this Cherkinian old dude comes up behind him with his cane and knocks the pistol right outta his hand like in some movie or something.
v. in gerund; to dance flapping your arms (like a chicken), occasionally while turning in a circle and looking pleased with yourself. can be done in a long row called "giant caterpillar".
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"