have something on the ball

have something on the ball

To be attentive, knowledgeable, and quick to take action. Primarily heard in US. I'm so glad that my assistant has something on the ball because I'm too scatterbrained to manage my schedule on my own. I can't believe Molly got that report done so quickly—she really has something on the ball.
See also: ball, have, on, something
Farlex Dictionary of Idioms.

have something on the ball

to have a particular amount of smartness or cleverness. Both John and Mary have a lot on the ball. They should go far. I think I'd do better in school if I had more on the ball. I learn slowly.
See also: ball, have, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

have something/a lot on the ˈball

(American English, informal) be capable of doing a job very well; be intelligent: I think she has a lot on the ball and would make an excellent senator.
See also: ball, have, lot, on, something
Farlex Partner Idioms Dictionary
See also:
  • be on the ball
  • (something) is over (one's) head
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for
  • at the point of (doing something)
  • (it's) good to hear your voice
  • be at a disadvantage
  • at a disadvantage