Smashing Gravs Share definition Flag To take massive single-shot hits from a gravity bong, traditionally a GB, usually in a group. C: I want to get ignorant tonight! E: Well then lets get the crew and start smashing gravs! Smashing Gravs by GoldDRoger May 16, 2018 0 0 Get merch Get the Smashing Gravs mug. Buy Now — $32.95 See more merch