Top Definition
1. (n) A particularly large and weighty cock. See also Spam Javelin for a slimline version.

2. (n) A person who acts like 1.
1. He wrenched her womb asunder with his mighty Spam Hammer.

2. Dear god man, why must you go about things like such an utter Spam Hammer.
by Thos February 10, 2005
The dick. The cock. The schlong. The John Thomas (etc).
My girl was aching for a spamhammer beat-down.
by The Spamhammer March 13, 2010

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