Doody Bomb 

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."

Doody Bomb by creedmoor October 13, 2004

doodybomb 

dropping a giant bomb of doody in the toilet

"Hey? Who dropped the doodybomb in the bathroom?"

doodybomb by helen a handbasket September 3, 2006