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Definition

Alert, active, or attentive; on top of things.

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In Context

  • "If I had been more on the ball I would have asked when he called me."
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Related Idioms

k

keep someone on their toes

To keep someone attentive, active, busy or alert.

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on one's toes

Attentive, active, busy or alert.

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it takes two to tango

Some things need the active cooperation of two parties; blame is to be…

 m

morning person

A person who wakes up, without difficulty, early each morning and is a…

 b

ball of fire

A person who is especially active, ambitious, hard-working, or high-ac…
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