Shit Veto Share definition Flag When your about to take a shit and someone says they have to piss real quick and uses the bathroom before you. I got shit veto'd at Robins house again. I wish she lived in a house with two bathrooms. Shit Veto by Dahiggz March 21, 2016 0 0 Get merch Get the Shit Veto mug. Buy Now — $32.95 See more merch