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!!
by Nifkin Diver April 29, 2004
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1) A porn industry slang.
2) Referes to the penis as an impliment for penetrating the anus and denotes a forceful, sexually charged atmosphere in which this penetration will occur.
3) As a part of the english vernacular it usually denotes the act of anal sex between 2 people. This term is not specific to any particular sexual orientation but rater generic.

4) A vulgar reference to the act of anal sex due to the implicit "violence" of the term and it's reference to a hammer.
I fucked I lot of hot young bitches back then...They called me Dave "The Ass Hammer" Smith back in college.

The girls all called him the "ass hammer" cause he loved anal sex so much

The gimp was a silly bitch who always begged for the ass hammer

"I like to think of it as ass play but Bill gets freaky whenever I mention going in the back door and then the ass hammer comes out"

Hammer my ass! like the bitch that I am.
by titties and cake September 10, 2004
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1. The state of being such an asshole it's like the force of a hammer upon others
2. What one calls another that is a cheap camper in Halo or one that is cheap (see spawn kill)
3. One who is the giver of anal sex
1. Jesus he's such an ass hammer it's enervating
2. ADAM YOU'RE SUCH AN ASS HAMMER!
3. I was Cindy's ass hammer last night. *shrug*
by Eric-GS3- November 6, 2005
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Literally hammering a searing hot railroad spike into an asian girls asshole. Making sure she will never forget you
This is ofcourse a tribute to Chinese New Year.
"What did you and Ling Ling do last night?"
"Well since it was the Chinese New Year, I gave her the chinese ass hammer."
"Wow, she will never forget you..."
by ChristWhite December 9, 2008
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an erogenous device used for stimulating and/or pleasuring the anus and/or sphinctor region. the device moves in a reciprocating fashion and is usually powered by a small forced induction gasoline engine. variants include the pnuematic air-piston ass hammer and the eletromagnetic anal clapper.
I was looking through Andy's closet for a tennis racket and found his turbo charged ass hammer.
by antonio bovine October 29, 2007
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Sub par. Well below average. Shitty.
That stripper has a smoking hot body but her face looks like hammered ass. I don't know what happened last night but I feel like hammed ass today.
by Dar-Man February 10, 2012
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