1 definition by BrainGear
The act of packing an anus with baking soda then topping off with vinegar to create a shitty, bubbly anal volcano. (Mentos and diet coke can be substituted but with somewhat less spectacular results)
I heard Mark and Brian tried a shit bubble volcano last night, I feel bad for those casino cleaners.
by BrainGear October 6, 2017