A very rare person who you only see when something important is going on. This person likes to show up and still the limelight but will disappear when nothing benefits him. If one asks to borrow your coat, do not lend it to him...unless it's a coat you have no use for and do not want to see again.
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?"