run after

run after idiom
    Also, chase after.
  1. Follow, pursue with haste, as in Our dog loves to run after the mail truck, or The children were chasing after the geese in the park. [c. 1300]
  2. Seek the company or attention of, especially aggressively. For example, He's run after her for a year, but she just ignores him. [Early 1500s]

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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