To be completely screwed over or betrayed in a bold, unexpected, or audacious way, often with a mix of bad luck and someone else's reckless or shady behavior. Think getting your car sold by your parents who then gamble away the cash—leaving you high and dry.
"I left my car at my parents when I went on that European trip last summer. While I was gone they took it and sold it and lost the money at the casino."
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?"