It is used as an adjective meaning high or stoned. I first encountered the term while smoking a joint in Brooklyn with two graffiti artists. These guys were first generation American's with Jamaican parents.
Are you red? I'm on fire!
by Yettiboy September 4, 2006
Get the redmug. by I SAID RED October 18, 2020
Get the redmug. 
A kind of marijuana, usually from Jamaica, with red hairs on the leaves. Overrated according to some, usually brought back to this country inside hollowed-out candles by tourists, under the impression that it is of exceptionally high quality, by virtue of it's being from Jamaica.
Most kids at this high school talk a lot about weed, while knowing shit about it. They could get a hold of some 6-week-old Jamaican red and think they were smoking some kind herb.
by the pope June 6, 2004
Get the redmug. 
by skinheadjosh April 17, 2008
Get the REDSmug. Stating the obvious. (Throwin' the red)
by Andrew February 23, 2003
Get the Redmug.