When a fat or obese man masturbates.
If I hadn't eaten that last donut, I'd be shakin' bacon right now.
by Magilla Gorilla June 12, 2007
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A form of greeting, inviting the recipient to respond, in kind
Amber: What's shakin', Bacon?
Mace: Nothing much, stay in touch.
by maceisthemax May 8, 2011
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A slang term for the male version of masturbation, whereas "shakin'" refers to the motion of the hand gesture and "bacon" represents the penis, or whoopie stick.
Hey man, do you want to come over tonight and watch The Notebook with me?

Nah, I'll be too busy shakin' da bacon.
by Phillip Mugooch February 13, 2010
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