A threesome involving two women and one man where the man ties a strap-on to his ass and gets one woman with his natural penis from the front and the second woman with his artificial penis from behind...
by Adeadlybiscuit March 21, 2009

A vibrator or dildo. So called as women can thrust it in and out of themselves with high speeds, hammering their vagina.
by Randy Rob October 25, 2008

by Sam Feekins October 2, 2006

That's it! I've tried to play nice with you, now you've given me no choice! It's time to drop the hammer!
by Kurogane7 November 25, 2010

Gundam Hammer - A weapon in "Gundam." A chain with a rocket-powered spiked ball on the end. Yoshiyuki Tomino, the creator of "Gundam," insisted that "Gundam" was not just a giant robot anime, but a realistic show about war and humanity. Gundam Hammer was introduced, and critics said it wasn't very realistic. Tomino responded by saying that "Gundam" is only a giant robot anime after all.
by Your August 11, 2003

The act of slamming a penis onto the top of someone's head. Not to be confused with a cock slap, a sausage hammer relies on downward motion (as opposed to the side to side). Very effective when used to shock or surprise someone, very degrading when used during fellatio.
Mike typically gave Matt a sausage hammer in the locker-room every day prior to track
practice.
Will gave Cassie a sausage hammer after she failed miserably at fellatio.
practice.
Will gave Cassie a sausage hammer after she failed miserably at fellatio.
by Steve Roberts III April 23, 2006

by I.B. Noone March 15, 2004
