A screwboy is a prison inmate who tends to take the side of the "screws" (i.e. prison officers). A screwboy is a prisoner who has been known to:
a) "grass up" another inmate;
b) "suck up" to the prison officers;
c) spend a disproportionate amount of time talking to, socialising with, and generally being in the company of prison officers.
Prisoner #1: "I'm gonna tell the screws about {blah blah blah}..."
Prisoner #2: "Don't be a screwboy."
Prisoner #1: "Why are you always laughing and joking with the screws?"
Prisoner #2: "What, are you accusing me of being some kind of screwboy?"
A term used by engineers to allocate their hate for Sir Isaac Newton. If newton never lived our lives would be a lot easier. Because of that bastard we are forced to do work till 3am every night. A cross between screw and newton.
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?"