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. When their goalie is on his game, good luck getting even a deflection past him.

See also: game, on

Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.

be on (one's) game

To play a sport with great skill.

See also: game, on

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.