genocidal_hammer 

There's not much to say. He's one grimnorseultramotherfuckingmetal son of a bitch. Can be used as a noun or adjective, to describe someone close to or just as grimnorseultramotherfuckingmetal as him.

Jim: This Artillery CD is fucking great.
Bob: Whoa, dude, don't pull a genocidal_hammer on me.

genocidal_hammer by Robyn Swank November 15, 2004

Strap hammer 

The process by which a gentleman that is lacking in the penis department straps on a large rubber penis to give his partner a better bang.

Dave put a strap hammer on his 3 inch willy to give Maria some anal destruction.

Strap hammer by Mikey O God of Love July 22, 2006

c-hammer

abbreviated form of "cunt hammer"; a woman whose bitchiness transcends all other definable bounds.

Cersei Lannister is a Grade A c-hammer.

c-hammer by Clyde Daniels January 20, 2013

dirty hammer 

A sex position that involves three men. The first one bends over, the second man the proceeds to place his erect penis in front of the first man's asshole. After that the third man uses his penis as a hammer to slap the second man on the ass until the second man penetrates the first one.

Bob: Hey dude what was that slapping noise coming from your room last night?
Jon: Oh me, Charles and George were doing a dirty hammer.
Bob: Awesome!

dirty hammer by makeaRonie August 20, 2014

Mongolian Wet Hammer 

the act of taking a fairly large dump in a tube sock. One must let the shit soak in the sock and then it can be used to repeatedly beat someone you very much hate

Evan Broadcock used his Mongolian Wet Hammer beat the hell out of his best friend Max Poon.

Mongolian Wet Hammer by nickademas_and_john_wayne December 31, 2011

Keegans Irish Hammer 

A very large penis which the girls know by,"Keegans Irish Hammer"

"Yo, did you hear about Keegans Irish Hammer.I heard its so big it can hammer a spike into a board!"

Keegans Irish Hammer by Keeganshammer October 18, 2008

Ass Hammer 

A mechanically operated percussive device used to pound an object such as a dildo into your buddies ass.

Hey Alex, to celebrate our new legal union, I bought you and 3 horse power gasoline operated ass hammer with optional scrotum coupling device. Get ready to feel the love!!

Ass Hammer by Nifkin Diver April 28, 2004