laugh at

laugh at idiom
Treat lightly, scoff at. For example, He said the other children all laughed at his jacket, or They stopped laughing at his theory when it proved to be correct. [Late 1300s]

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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