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!
by makeaRonie August 21, 2014
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The Dirty Hammer is a spin off of the original hammer. It begins when a girl is sucking on your balls and makes her way down to your chocolate starfish. Once she is there you proceed to execute the hammer, but you shart performing the awe inspiring Dirty Hammer. If chunks or squirts of feces do not exit your chocolate starfish, you suck at life and should be reading the hammer.
"Jermo accidentally performed the Dirty Hammer on that slutty ho, which has made him a legend!"
by Jermo B April 9, 2008
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-A sledge hammer that is often dirty..
- A male with a dirty penis, his tool is often infected by blue cabbage.
by Sexbooooom November 14, 2010
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