Caitlin Kebberly is a kind, lazy weirdo who has the type of personality that they would do random things like sitting in a bean bag in the middle of a highschool hallway or the type of personality that she would easily become obsessed with random things like pickles and zac efron and brandon flowers.
Student # 1- "Caitlin Kebberly is sooo weird. She threw a bunch of headless barbies in the hallway today and a cucumber."
Student # 2- "Yeah I heard that she was the one who put a giant snake skin in the hallway last week!"
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?"