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be on the ball

 
Idioms: on the ball, be

Also, have something on the ball. Be especially capable or efficient, as in These programmers really have a lot on the ball. This term originated in baseball, where it was used for throwing a pitch with exceptional speed, spin, or some other deceptive motion. [Slang; early 1900s]


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WordNet: be on the ball
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Note: click on a word meaning below to see its connections and related words.

The verb has one meaning:

Meaning #1: be well-informed
  Synonyms: know the score, be with it, know what's going on, know what's what


Shopping: be on the ball
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Copyrights:

Idioms. The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Company. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more