Top Definition
When you eat something unsettling with poo already in your rectum, the gas from the unsettling food then floats around your turds (like a lava lamp) creating intermittent pressure that you are afraid to release for fear of a shart!
I skipped my morning poo and after a spicy lunch I was lava-lamping at my desk.
by GoodeGuy July 25, 2011
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