Top Definition
A quick, and almost violent pull of the male penis, which brings instant ejaculation after the first pull. Typically done after a long night at a strip club where your genitals have been aroused for several hours with no satisfaction.
For a second, the young man thought to himself, I'm going to need to home and perform the One Ham Slam when I get home after being around my friends sister all night.
by D Bokeyno August 14, 2008

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