Jackhammer 

The go to manoeuvre of the sexually inexperienced or inept. Popular among teenagers it is characterised by deep fast thrusting with no build up or body contact besides P2V. Made infamous by SATC 'the jackrabbit'.

Girl1: I karate kicked jack out of bed last night.
Girl2: Sex that bad
Girl1: All the guy knows how to do is 10 mins of the jackhammer. I miss orgasms.

Jackhammer by carrie94 June 20, 2018

Jackhammer 

A sexual position similar to Doggystyle, but you lift her legs off the ground. Then you stand, forcing her body to be arranged at a downward angle. It is named for the resemblence of a construction worker pounding away on a jackhammer

Jim: Can we go fr Doggy tonight?
Alicia: Doggy is getting boring, lets mix it up, JACKHAMMER ME!!
Jim: Who's your daddy bitch

Jackhammer by Smizzles fo Rizzles October 2, 2007

Jackhammer 

the sexual act of a man repeatitively penetrating a woman's entry hole with rapid up and down movements similiar to that of a jackhammer

Alex jackhammered Jody so hard that she could not walk the next day.

Jackhammer by Megan and Katie October 5, 2005

jackhammer 

1. A sexual manuver of constant re-penetration; basically taking the dick in an out of the vagina (or anus) repeatedly, in a 'jackhammer'-like motion / or jacking off on a chick's face from a really short distance away

2. a prototype 'automatic' shotgun (worked with a feeding mechanism much like a revolver), was designed by John Andersen, it fires 12 gauge rounds, in a 10 shot 'magazine', has a ROF of approximately 4 shots per second. These are not really in any form of production

" Dude, I jackhammered pretty good her last night, she can barely walk now"

jackhammer by LarryVR April 19, 2006

Jackhammer 

sex move in which - holding chick’s ankles as man is standing up and chick dangles with shoulders resting on ground or lower surface

I gave her the jackhammer

Jackhammer by JBut December 25, 2007

Jackhammer 

1. A large power drill used in construction

2. the act of stealing your buddies hammer after he helped you build that extension for your house.

He beat Jim over the head with a jackhammer

Jackhammer by Seph Infinitum February 16, 2009

jackhammer 

Jacking off into your hand and then slapping your buddy with your cum and then slapping them with flour.

"We couldn't pass up the opportunity to jackhammer Greg after he got turnt as fuck at the party last night."

jackhammer by Alayna Darko December 26, 2014