Meanings
From "Hollywood (Part 3)", a 1977 episode during the fifth season of the American television series Happy Days, in which the character Fonzie jumped over a shark on waterskis. The expression argues that it was at this point that the show bore no similarity to its original form.
How to pronounce "jump the shark":
AU
To undergo a storyline development which heralds a fundamental and generally disappointing change in direction.
To experience a decline in quality, appeal, popularity, etc.
Example Sentences
1
The TV show became so ridiculous when they had the main character jump the shark.
2
The fashion designer seemed to jump the shark with their latest collection.