Washed-up

Full definition of washed-up

Adjective

1. No longer capable, effective or needed; over the hill.
• 2012, June 3, Nathan Rabin, TV: Review: THE SIMPSONS (CLASSIC): “Mr. Plow” (season 4, episode 9; originally aired 11/19/1992), It would be difficult, for example, to imagine a bigger, more obvious subject for comedy than the laughable self-delusion of washed-up celebrities, especially if the washed-up celebrity in question is Adam West, a camp icon who can go toe to toe with William Shatner as the king of winking self-parody.