Common term used to describe a day in which one skips school to do homework they otherwise wouldn't have time to complete. Believed to have originated many moons ago when an anonymouschild named "Frank" started the tradition.
"Man, how the hell are you going to finish that research project by Monday?"
"No worries, I'm taking a Frank-Day on Friday."
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?"