A naked cannonball, where you poop (dookie) before you hit the water. Originated from a viral video, hosted on nothingtoxic.
by Stampitch November 5, 2010
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while in the act of performing a cannonball into a body of water, the person simultaneously performs a dookie (mid-air defecation) aka...taking a shit while doing a cannonball
john performed a perfect cannonball dookie into lucky peak.
by tiggermack September 14, 2011
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Something that can only be accomplished by a man with an incredibly loose asshole.
Me: Holy shit. That guy's poop came out of his ass faster than a rocket. He must be gay....

Friend: Nah man, that's the Cannonball Dookie.
by Dubitc July 14, 2011
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