pull out all the stops

pull out all the stops idiom
Use all the resources or force at one's disposal, as in The police pulled out all the stops to find the thief. This term comes from organ-playing, where it means “bring into play every rank of pipes,” thereby creating the fullest possible sound. It has been used figuratively since about 1860.

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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