A story that always seems to have happened to somebody's mother or brother's friend or something1?. Usually untrue, although at times it is hard to tell.
- Apparently, Pepsico owns the patent for something called "Animal 57s." They keep these things in the back of Taco Bells and KFCs. It's where they get their meat. These things are just big chunks of meat floating around in tanks of water. If you tap on the side or stare at them, they'll come toward you. Apparently a living organism that's used for nothing but its meat (because that's all it is).
Also a movie in the 'I know what you did last summer' series.
1? Known as the "friend of a friend" or "foaf" by urban legend collectors.