Definitions by globus

scag 

abbreviation of 'scumbag' meaning exactly that, or lowlife, cad, overall person of ill character. 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.

scag by globus January 17, 2008