beat a retreat

beat a retreat idiom
Also, beat a hasty retreat. Reverse course or withdraw, usually quickly. For example, I really don't want to run into Jeff—let's beat a retreat. This term originally (1300s) referred to the military practice of sounding drums to call back troops. Today it is used only figuratively, as in the example above.

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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