have someone's number on it

have (one's) (name and) number on it

To be intended or destined to cause harm to one, as of a weapon like a bullet or an unintentionally harmful entity. He jumped in the way to take a bullet that had my name and number on it. That falling tree had my number on it, but I was able to swerve out of the way just in time.
See also: have, number, on
Farlex Dictionary of Idioms.

have someone's (name and) number on it

(of a bomb, bullet, or other missile) be destined to hit a specified person. informal
See also: have, number, on
Farlex Partner Idioms Dictionary
See also:
  • have (one's) (name and) number on it
  • get the bullet
  • take a/the bullet (for someone)
  • bullet-stopper
  • lead poisoning
  • poison
  • play Russian roulette
  • Russian roulette, to play
  • Russian roulette
  • penetrate through (someone or something)