blow the lid off

blow the lid off idiom
Also, blow wide open. Expose, especially a scandal or illegal activity. For example, The newspaper's investigation blew the lid off the governor's awarding state contracts to his friends. [First half of 1900s]

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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