two can play (at) this game
If one person does something (often something deceptive, devious, or harmful), so can another. This phrase typically prefaces an act of retaliation. Did she really start a rumor about me? Well, two can play this game—I'll make sure the whole school is talking about her by tomorrow morning! Stu's been getting here early to impress the boss, so I'll just start coming in at 6 AM. You see? Two can play at this game!
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.