Sludge Fuck 

Reserved only for the sick and twisted. A sludge fuck entails having sexual intercourse atop the deficit of each of the members involved (no pun intended). The warm gooey goodness spreads all over the participants and it somehow arouses them. Yikes.

Why let your shit go to waste!? Try sludge fucking!

Sludge Fuck by The Alchoholic Insomniac November 7, 2004

Smudge Fuck 

To ruin something through excessive handling.

I don't lend out my porno magazines anymore because they always come back smudge fucked.

Smudge Fuck by october-jones October 23, 2008

sledgefuck 

the act of repeatedly beating the shit out of a fellow human being with a sledgehammer. (usually in the face or mouth)

this term is commonly misconceived as a form of sexual intercourse.

Dave: Noah if you fucking do that again im going to fucking sledgefuck you!
Noah: Shit dude, no worries: hakuna matata, chalax bra

sledgefuck by Saucer Full Of Secrets October 20, 2005

Sludgebucket 

A repetitive cream pie in a woman’s vagina that eventually is so full of semen, it looks like a sludgebucket of dirty water.

Last night I called Jessica and asked if I could come over and give her a nice full sludgebucket for Christmas.

Sludgebucket by Christoe December 4, 2019