Shit Mace Share definition Flag The kind of shit that feels spikey and you are sure ripped you a larger asshole. Ow, my ass hurts so bad! I just crapped a Shit Mace. Shit Mace by FubarGOB September 21, 2010 0 0 Get merch Get the Shit Mace mug. Buy Now — $32.95 See more merch