My friend and I were having a casual conversation today and I mentioned the ending of Lost, now I don't and never have watched Lost I just heard that the ending involved purgatory and dreams and all that and thought it sounded ridiculous. So I said to my friend "Sounds like they really jumped the shark on Lost", we then got into a 5-minute argument over weather or not "jump the shark" was a real idiom, he was convinced I made it up on the spot. When I got home a e-mailed him the dictionary.com entry, the TVTropes article and the Wikipedia article on the idiom yet he still thinks its fake. I bet him 10 dollars that it was a real idiom and I'd like to redeem my 10 dollars, so what I really just need another piece of evidence that shows that more than one person acknowledges the existence of this idiom.