Top Definition
When you have explosive diarrhea. You rush to the toilet barely get your pants down or squat. When all holy hell breaks loose. Like a howitzer packed with Dinty More beefstew. Hitting the bowl, flush valve, tank and wall. With an unholy stench of dripping turkey giblet ass gravy!
After eating at golden coral. Fifteen minutes later I had to hit the 'head' ( naval term for toilet ).
I barley got my pants down. When kabooooom !
I let loose with the Gravy Cannon!
The blast pattern covered the bowl and most of the wall.

ass gravy ass grenade
by The Prospect September 10, 2013

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