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A very agressive way of fucking, using long strides with a very fast tempo.
While I was giving her the jack hammer, you could hear a "slap slap" sound through the entire house.
by T. Lux. April 28, 2003
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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
by Smizzles fo Rizzles September 18, 2007
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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.
by Megan and Katie September 18, 2005
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having a girl lay on her back on the floor with ass in the air while you are horizontal above her with hands on the coutch and feet on end table jack hammering the piss out of her.
Mike broke the table last night tying out the jack hammer on his new girl.
by batman63 May 24, 2006
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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"
by LarryVR March 22, 2006
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sex move in which - holding chick’s ankles as man is standing up and chick dangles with shoulders resting on ground or lower surface
by JBut November 24, 2007
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