abbreviation of 'scumbag' meaning exactly that, or lowlife, cad, overall person of illcharacter. useful when avoiding expletives in potential road rage situations, and also used in 'Mad Max' the movie.
driver : that scag just cut me up at the roundabout!
passenger : yeah he was driving like a scag! asshole.
1. Drugs, as reffered to by a junkie.
2. Someone who never has anything they need, and has to constantly borrow from other people although they have no intentions of returing said item.
1. {sniff, twitch} "D..d...d...dude! Gotta get that scag!"
2. Savannah, the stupid scag: "Hey Angel, can I borrow your backpack?"
Angel: "No, fucking SCAG!"
Skank + Hag= A formerly disreputable and often disheveled, wrinkly, and miserable worn-out dust rag of a woman, typically embittered about how unkind the aging process has been to them.
A word used to describe Heroin By the users of the 50's.60's&70's.I know this to be true because it is so many of you who were by my side going to score that Scag and get us a dime bag.