A doobie blazer is a guy (always a guy) who smokes weed ERRYDAY. When not blazed, they spend all efforts trying to get blazed or get the three requirements of smoking weed: money, weed and somewhere to get high as a Mur' Fucker. Often found out in some cars passin' joints and hittin' bongs and lungs like Pippa Middleton. Somethimes you may call these guys stoners, but we have another name - Kottonmouth soldiers.
Guy 1:"Where's everyone the night then?"
Guy 2:"Uh, I think the doobie blazer's are at McMillans gettin' blazed."
Guy 1:"Surprise, surprise."