Performing anal sex while the recipient releases diarrhea in a slow, controlled fashion that is timed with each thrust. Traditionally, the partners work together to mix the diarrheal substance into a thick paste, although recipients often allow for the occasional explosion of liquid stool for added flair. Additionally, if the right consistency is attained, the diarrhea acts as a very effective lubricant that is safe for use with most latex condoms. Can easily transition into other maneuvers, such as a Dirty Sanchez or Hot Carl.
I hold off as long as I can, but as soon as that 1st wave of Cement Mixer shit hits my dick, I have to bust in her immediately!
by DigDog June 22, 2006
A wrestling pin where a persons face is held against the others crotch, making it very embarrassing for the person being pinned. And uncomfortable if you opponent is sweating or has a wrestling boner.
Man. A guy from the other team out me in a cement mixer, he was all sweaty and had a wrestling boner, it sucked.
by Spandexjock September 29, 2013
when you put gravel(large gravel, like 2B size gravel) into a girls butt and then proceed to have sex and cum in her butt. after cumming the girls swishes the gravel and semen mix and shits it out onto the floor where you are waiting with a trowel to mold it into whatever you so choose, preferably a yert.
"Wow, he sure gave her a great cement mixer last night! Just look at the size of the yert they made!"
by John Wayne Goatsie November 28, 2011
Grabbing a male's genitals and squeezing, twisting, and pulling them. Once someone has successfully completed a cement mixer, that person must yell the words 'CEMENT MIXER'.
by thefatek November 14, 2010
by m0rph3us October 14, 2004
When a man has alot of drugs, sometimes another man owes him an amount of money. The drug owner lays facedown on a cement slab, any sidewalk or neighbors driveway will do, and pulls his weiner and ball sac through his legs backwards, at this point the cement mixer becomes a gay bj all weird and shit out in some dudes front yard...yea its pretty fucked up
by Gotthebag March 11, 2009
by JTKBIZ March 10, 2008