1. Penis with a bulbous deformed head that is disproportionately larger than the shaft., 2. Used to describe a loud or obnoxious person. Most effective when preceded with a traditional expletive, (i.e. "You fucking Yam-hammer"), 3. An aggressive consensual sexual act that involves a sound beating and/or pummeling.
1. I'd love to yam-hammer that bitch!

2. Seven is a twisted fucking yam-hammer, and someone should whip his ass.
by Paintmonkey March 13, 2007
5 Words related to Yam Hammer
n.) A fully erect penis, usually one of staggering sive and girth.
Suzy gagged on Neil's yam hammer, despite being an accomplished cocksucker.
by Blenderhead91 April 03, 2009
1. Penis with a bulbous deformed head that is disproportionately larger than the shaft., 2. Used to describe a loud or obnoxious person. Most effective when preceded with a traditional expletive, (i.e. "You fucking Yam-hammer"), 3. An aggressive consensual sexual act that involves a sound beating and/or pummeling.
1. I'd love to yam-hammer that bitch!

2. That dude is a such a yam-hammer!
by Paintmonkey March 14, 2007

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