walk on eggs

walk on eggs idiom
Proceed very cautiously, as in I knew I was walking on eggs when I asked about the department's involvement in the lawsuit. This metaphoric idiom transfers walking on fragile eggs to discussing or investigating a dangerous subject. [First half of 1700s]

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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