Fucking an ass deeply enough to encounter the shit coming down inside. The person being fucked can push the shit down onto the cock and out so the person doing the fucking is literally fucking the shit, or one can say they are fucking the shit out of the other person as they pull it out on their cock.

Can be a noun or a verb.
"She took a shit while I was fucking her ass and it turned into a really hot shit-fuck." (noun)

"I want to shit-fuck her bad so she is building up a big turd for me to fuck." (verb)

"Did you see the shit-fuck those two had? I want to go next and really shit-fuck the brains out of him." (noun and verb)
by MasterF4U December 28, 2011
Get the shit-fuck mug.
To take a shit so huge, that it feels like your being ass raped
My ass is so sore from that shit fucking after we left that mexican resturant
by El3M3NTxRxFxSx January 19, 2008
Get the shit fucking mug.
from a 1978 concert, Frank Zappa's bandmembers chanting "shit-fuck! shit-fuck! for you!" before pretending to gang-rape another bandmember
by Noxema-Tapioca July 31, 2004
Get the shit fuck mug.
the ancient art of taking a shit while fucking a girl in the ass
i learned how to do the shit fucking technique by my grandmother
by dean gilberry February 15, 2017
Get the shit fucking mug.
when you shit and it causes the water to shoot back up your ass
i took a huge shit and the water shit-fucked me
by Anthony Red November 19, 2008
Get the shit-fuck mug.
The act of completely losing your shit and being at a complete loss for words. It can be used in situations such as breakups, weddings, hitting said children with a said car, messing up a fire rap verse, hoverboarding over rock or ex-girlfriend (your choice), spending all your money on claw machines, or just being bored.
girlfriend: I think it is time for us to break up
You: shit fuck fuck shit fuck okay

*two hours later*
You: shit fuck fuck shit i just ran over her with my hoverboard
by daleb July 1, 2019
Get the shit fuck fuck shit fuck mug.
To fuck someone with a dried or frozen shit
That cunt pissed me off, so I took a dump in the ice cube tray and then shit fucked her.
by He who burgles the turd May 17, 2006
Get the shit fuck mug.