SINCE 1828

An Encyclopædia Britannica Company

on one's game

idiom

Definition of on one's game

: playing a sport or game well

She's really on her game tonight.

—often used figuratively

He was really on his game in last night's debate.

Word by Word Definitions

game play

: activity engaged in for diversion or amusement : play
: the equipment for a game
: often derisive or mocking jesting : fun, sport

: to play for a stake
: to lose or squander by gambling
: to take dishonest advantage of : cheat

: having or showing a resolute unyielding spirit
: willing or ready to proceed
: of or relating to game

: lame

See the full definition of game

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