Barn-Floor Weed Share definition Flag Shitty ass weed. Could just be terrible weed or maybe it's just oregano. Yeah it was pretty funny, i sold Jim some shitty barn-floor weed. Barn-Floor Weed by Dante P October 17, 2005 0 0 Get merch Get the Barn-Floor Weed mug. Buy Now — $32.95 See more merch