Graveyard Weed Share definition Flag Weed that is laced with embalming fluid. Mike:Damn this is the best weed I have smoked. Chris: Hell yeah it is. Its Graveyard weed. Graveyard Weed by o0hBangXcore September 25, 2005 0 0 Get merch Get the Graveyard Weed mug. Buy Now — $32.95 See more merch