on one's game
idiom
: playing a sport or game well
She's really on her game tonight.
—often used figurativelyHe was really on his game in last night's debate.
Cite this Entry
“On one's game.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20one%27s%20game. Accessed 8 Jul. 2025.
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Merriam-Webster unabridged
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