be in it for

be in it for

To be involved with or a part of something for a particular reason or purpose. I'm not really that concerned with nonprofit work. I'm in it for the boost it will give my career.
Farlex Dictionary of Idioms.
See also:
  • away from it all
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • (the) odds are against (something)
  • be out of (one's) head
  • be at a disadvantage
  • at a disadvantage
  • be more than (something)
  • be more than glad, ready, etc.