A phrase used to describe someone with an adrogynous appearance, like Hilary Swank in the movie Boys Don't Cry. This is a slightly inappropriate comment because the movie is based on a real person and the storyline is sad BUT most people don't read that much into it and just get the point that Hilary Swank is unattractive as both male and female.
"OMG! Did you see what Leslie is wearing today? Totally Hilary Swankin it!"
"Man, I dunno what's up with Josh but he's been Hilary Swankin it ever since he watched that one episode of Oprah!"
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?"