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
by Megan and Katie September 19, 2005
by the jackhammer professor May 05, 2009
by RDE45 April 11, 2008
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
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
by LarryVR March 23, 2006
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
by JBut November 25, 2007
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.
2. the act of stealing your buddies hammer after he helped you build that extension for your house.
by Seph Infinitum February 16, 2009
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."
by Alayna Darko December 26, 2014