To spit out something in some way resembling shit in texture, smell, taste, feel, or look.
Me: Dude don't put that cappuccino mix in your mouth. You might shit-spit it on this awesome shirt.
David: *PFFFFFFFFFFFFFFF* (shit spits)
Me: DUDE WHAT THE FUCK?!?!
The water that splashes up into your anus when releasing a turd into the shitter.
Brad decided it was no big deal that he was out of toilet paper, for the shit spit rinsed out his farthole just fine.
When you fuck a girl in the ass then let her shit in your mouth, then spit it back in her ass.
After Mike&Mary dropped their son off at daycare, they did a Shit Spit.
When you do anal with a woman and let her shit in her mout, then spit it back in her ass.
After me and my wife dropped our son off at daycare, we did a Shit Spit.