The absolute torrential evacuation of the bowels, literally causing the water and liquid shit in the toilet to circle with gale force speeds, causing utter destruction to everything in the bathroom.
Dave unleashed a chocolate squall in the upstairs bathroom, causing our can ceiling lights to rainshit for a week.
A magic phrase said by the character Gwonam in the 1993 game "Link: The Faces Of Evil" Sometimes spelled "Squadilah" it is thought to mean "You'll always be behind your prey." Although it may just be Gibberish.
Its fame However can be more attributed to it's frequent appearances in "YouTube Poops"