Shit the Shaft Share definition Flag When your partner shits on your penis as a outcome of anal sex or because of your fucked up idea of an kinky fantasy. I let Anna Shit the Shaft to try and spice things up in the bed room. Shit the Shaft by bench knight May 6, 2015 0 0 Get merch Get the Shit the Shaft mug. Buy Now — $32.95 See more merch