someone's days are numbered

(someone's or something's) days are numbered

Someone or something is doomed to die or end very soon. Often used hyperbolically or humorously when referring to people. If news of this gets out to the public, your days as a senator are numbered! My phone's days are definitely numbered—the battery won't last more than an hour. The captain of the wrestling team found out that I kissed his girlfriend, so my days are numbered now!
See also: days, number
Farlex Dictionary of Idioms.

someone's days are numbered

COMMON If someone's days are numbered, they are not likely to survive or be successful for much longer. His days are numbered. He's a very sick man. As rebels advanced on the capital it became clear that the President's days in power were numbered.
See also: days, number
Collins COBUILD Idioms Dictionary, 3rd ed.

someone's (or something's) days are numbered

someone or something will not survive or remain in a position of power for much longer.
2001 Business Asia Daewoo's former chairman Kim Woo Choong's days are numbered after Korean authorities issued a warrant for his arrest.
See also: days, number
Farlex Partner Idioms Dictionary
See also:
  • (someone's or something's) days are numbered
  • days are numbered, one's
  • chain (someone or something) to (something)
  • chain to
  • as far as the eye can see
  • as far as the eye can/could see
  • curl up and die
  • can't get over (something)
  • can't get over something
  • die of a broken heart