"Jump the Shark" is a semi-known phrase meaning "lose all credibility" or "it's all downhill from here." The phrase comes from www.jumptheshark.com - which catalogs and debates the (paraphrase) "defining moment when you know you're favorite TV Show has reached its peak and its all downhill from here." The phrase "jump the shark" comes from a Happy Days episode - late in the series - where Fonzie went on a vacation with the Cunninghams. In that episode of the sitcom, Fonzie jumped over a jaws-like shark while waterskiing on the ocean. Fans generally thought this moment was so absurd, that...