Stray pieces of marijuana that one finds on the floor around their blunt/joint rolling space or in their smoking spot. When his dealer and his back-up dealer have a dry spell, the average stoner will do almost anything to achieve his daily dose of cannabis, sometimes he will scavenge around his room's floor, bathroom etc. and look to pick up any small, fallen pieces of marijuana and collect them to smoke. The resulting mess of stale, dirty and assorted kinds of marijuana are called Floor Haze.
Stoner A: Yo man, you got any weed left?
Stoner B: Naw man, but we can look for some Floor Haze.