To let loose, with extreme force and vigor, an excessive stream of diarrhea. One does not necessarily have to use a toilet for bowl rattling to occur; however, any area chosen as a bathroom suffers extreme damage as a result of the bowl rattler.
Example #1: My bowl rattler ruined my Honda.
Example #2: Bravo Burger is the home of the bowl rattler.
Example #3: Roman's bowl rattler just pummeled John's Restaurant.