After a weekend of drinking
beer, eating all those chilli
dogs, poutine, and whatever else came in contact with your lips, shitzilla is what attacks you (usually on sunday evening) when you tremble as you approach the
toilet.
"Oh
man, Shitzilla's on the prowl, can you hear him growling?"
"*Whew* Shitzilla
really took a round out of me that
time"