1 definition by Pat Hamm

Top Definition
A bowel movement that is stealthy, silent, and quick, but results in total destruction. The defecation community's equivalent of a Silent But Deadly fart.
Ron: "Dude, I Just took a Ninja Dump! Stay out of the bathroom!"
James: "But you were only gone for a minute, and I didn't even know you were in the bathroom!"
Ron: "Precisely!"
by Pat Hamm April 17, 2006
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