A sexual act where you pour 1 to 2 beers of budwizser in a girl's ass, then you fuck her in the ass doggie style till beer and shit starts flying out of her ass. Then follow with a southern dumptruck.
Man, my girl got so drunk last night, I gave her a southern jackhammer, then she gave me a southern dumptruck.
by Alabamalife May 21, 2021

The act pf inserting a fist into the anus of another individual, and rotating the fist as the wrist are forearm and repeatedly inserted and removed from the anus. The act is commonly performed in a rapid motion.
Babe, can we do the spinning jackhammer?
I took a spinning jackhammer last night and my asshole is like a well
I took a spinning jackhammer last night and my asshole is like a well
by XxCumOnMyTitsSenpaixX December 8, 2016

The act of attaching a dildo to a jackhammer and using it to pleasure someone. Careful, they might also die.
I gave my girlfriend a scandanavian jackhammer last night and now she's in the hospital. I don't know if she's going to make it and I'm really scared.
by Analbutt420 August 21, 2020

When someone (usually a hobo) pulls down a random males pants out of nowhere and immediately jacks them off at the speed of a jackhammer as they immediately ejaculate. The person then runs off. This happens often in Casper Wyoming which is in Natrona County.
by regierawlins69_luskjelm August 2, 2021

Yeah dude, we were in bed and we did the sloppy jackhammer, and it's something you need to try with your girl.
by Uncle Squeeze May 25, 2019

When your partner lays on their back on the edge of a bed with their face up. They perform oral sex in a vertical motion while you “jackhammer” their face holding their wrists as handles. The “jackhammer” also makes the sounds “Dadadadadada” as to replicate a jackhammer sound.
by Sexual Auditor November 8, 2017

When a dude lifts the legs of another dude whose laying on he back bending his ass straight up. He holds the dudes legs while fucking him in the ass. Thus priducing a pogo- jackhammer effect.
Willie was passed out on the bed. When Jason noticed that Willie was naked and laying on his back he imeduatley scrambeled on to the bed, lifted Willie' s legs and Pogo-Jackhammered him like a construction worker at a job site. Shit was gushing out like he struck oil.
by Club September 13, 2016
