has been

Noun

has-been (plural has-beens)

1. (derogatory, informal) A person, especially one who was formerly popular or influential, who continues in their field after their popularity or effectiveness has peaked and is now in decline.
   • When the aforesaid alderman or another wishes to express mild contemptuosity for his fellows and himself in future I would suggest “old fossils” or “old has beens,” or “old fogies,” then the Sir Galahads that are always riding—or driving—about in this progressive dorp will not have any cause to...1927 November 25, J. Jingle, “Merely My Musings”, in The Dabbo Liberal and Macquarie Advocate, page 2, column 3

See all 2 meanings of has-been