G13-Haze Share definition Flag It's a type of marijauna, that has been crossed with G13 (govenmentally grown marijuana), and Haze. Last night I smoked that G13-Haze, and I was high 3 months later. That's some good shizz! G13-Haze by Mario D November 14, 2007 0 0 Get merch Get the G13-Haze mug. Buy Now — $32.95 See more merch