The beginning of the end. Something is said to have "jumped the shark" when it has reached its peak
and begun a downhill slide
to mediocrity or oblivion. It's said to have been coined by Jon Hein, who has a web site, jumptheshark.com, and now a book detailing examples, especially as applied to TV shows. It supposedly
refers to an episode of the TV show "Happy Days" in which Fonzie jumps over
a shark on water
skis, which Hein believes
was the point at which the series
had lost its touch and was beginning to grasp at straws.