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 alwayslaughing 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.
To take something small, that doesn't quite qualify as a theft. Probably from the Danish "skæv" or the Dutch "scheef", both of which are pronounced similarly, meaning "askew, or not quite right'. To change an item's ownership without permission, but only something small and of little worth.
"I skeefed an apple off the neighbor's tree." "I skeefed some chips outta your bag when you looked away." "Don't skeef my chair when I go to the bathroom."