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
1 more definition
having sex with a girl on her period
i was lavalamping last night with this random girl
by gerg15 December 01, 2009