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A bowel movement that is evacuated with such force that it his the bottom of the bowl and splashes water up against your baskside.
"Man, that doody bomb was like crapping out a watermelon."
by Creedmoor October 13, 2004
dropping a giant bomb of doody in the toilet
"Hey? Who dropped the doodybomb in the bathroom?"
by helen a handbasket September 03, 2006