play someone's game
play (someone's) game
To engage or participate in something according to the design, intentions, or conditions imposed by someone. I know the application process seems nonsensical and unintuitive, but you just have to play their game and do the paperwork the way they ask. I'll play your game for now, but if I find out you're not holding up your side of the bargain, I'm going to the police!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
play someone's gameadvance another's plans, whether intentionally or not.
Farlex Partner Idioms Dictionary © Farlex 2017