Jumping the shark

I think the phrase "jumping the shark" has been sufficiently absorbed by pop culture that everyone knows what it means and where it comes from. Those who don't need to tune into re-runs of Happy Days to see Fonzie do some waterskiing in his leather jacket.

Or, alternatively, check out the website of the same name by the guy who wrote the book.

"Jump the shark" -- that's the catchphrase for television shows which have peaked and are on the decline (and use silly stunts like jumping a shark, trips to interesting places or introduce a child character to the show in a vain attempt to save viewership and prop up interest).

But what about celebs who too often use their publicity machines to proselytize their personal beliefs? When their acting is overshadowed by their antics, and we're just sick of hearing from, of or about them? Ya' know, like Tom Cruise lately? I think that would be "jumping the couch".