Jackhammer

When a girl is giving a handjob and starts to pound so hard you think your balls will go into your asshole.

She gave me the Jackhammer and I had blue balls for months.

by Rajalec October 14, 2004

jackhammer

what you do is a cricket on 1 hand so the other hand behind your back or something and then bounce in a circle.

a jackhammer look impossible

by blazed December 09, 2004

jackhammer

Commonly known as Hansen, Hardcore, or Destructor. Is tricky and requires you to get on top. Characteristics include a rhythmic pounding and a peculiar knowledge of aquatic life.

1. When going to the bars, Hansen likes to turn on the charms of the Jackhammer.
2. The Jackhammer is tricky like that, sometimes you gotta climb on top and ride it out

by Goose81 July 19, 2003

jackhammer

The heavy weapon of the New Conglomerate in the PC game Planetside. The Jackhammer is a three-barrled fast firing shotgun that is commonly used as a frontal assualt weapon.

I owned that noob with my Jackhammer.

by DarkFusion April 15, 2004

jackhammering

when you're fisting a girl in the vagina and anus at the same time. (i.e. like you're using a jackhammer)

JB: dude, where we're you last night?
Dani: jackhammering yer mam lol
Dani: i got in there right up to the elbows

by unquestioned_answers September 26, 2006

jackhammering

when you do someones mom wet style with some mayo and a crowbar and you put the juice in their ear

dude i put my jackhammering juice in your moms ear it was fucking awsome

by augdizl February 03, 2004

Jackhammer

When a man jacks off like a hammer

He did a jackhammer last night

by Coopachup November 28, 2018