be fair game

be fair game

To be legitimately or permissibly targeted for something, such as criticism, use, or discussion. As the youngest sibling, I'm always fair game for mockery at family events. If you're playing football with us, then you're fair game to get tackled.
See also: fair, game
Farlex Dictionary of Idioms.
See also:
  • fair game
  • get the business
  • make nonsense of
  • make nonsense of something
  • make (a) nonsense of (something)
  • make (someone, something, or oneself) a laughingstock
  • make a laughingstock of
  • make a laughingstock of (someone, something, or oneself)
  • mock
  • make (a) mock of (someone or something)