Top Definition
The act of beating your penis so hard that in the end it turns a pinkish color, thus looking like a piece of ham. Best results come from using both hands at the same time since, they cause more friction.
I was Ham Slamming the other day at work and my boss walked in and joined me. I ended up quiting my job a few moments later.
by poopieweinerhole July 07, 2010

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