Piss Ass Shit Share definition Flag When someone or something smells terrible, like a combination of piss, ass, and shit. Damn, my dog peed on my backpack and now it smells like piss ass shit! Piss Ass Shit by makeitbacon July 4, 2009 0 0 Get merch Get the Piss Ass Shit mug. Buy Now — $32.95 See more merch