be on (one's) game


be on (one's) game

To perform with great skill in an activity or pursuit, such as a game, sport, or specific task. I can't believe I missed that catch—I'm just not on my game today. He's getting crushed in the debate tonight. You can tell his opponent is on her game.See also: game, on

be on (one's) game

To play a sport with great skill.See also: game, on