shit on a cat Share definition Flag To be upset with someone and tell them to leave you alone or piss off. David: I wonder where he is. Scotty: I don’t think the grinch has forgiven us yet. David: oh he can go shit on a cat. shit on a cat by Natertaterz January 23, 2018 0 0 Get merch Get the shit on a cat mug. Buy Now — $32.95 See more merch