The act and/or art of leaving a turd pile in someone’s toilet in such a way that some is above the waterline resulting in an oh so terrific aroma. In most cases one most pad the toilet with paper products in order to get the pile to sit high enough that it breaks the water line. Those who are proficient can leave several inches of feces available to share with the next patron of the commode. In the case of automatic flush toliets one must find a way to bypass the motion sensor. Most commonly this is done with a few wraps of tp.
Johnny left an iceburg in stall number 3 just to piss off the janitor.