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cocked hat

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noun
  1. a man's hat, worn especially in the 18th century, having a wide, stiff brim turned up on two or three sides toward a peaked crown.Compare bicorne, tricorn(def 2).
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Idioms
  1. knock into a cocked hat, Informal. to destroy completely; render unachievable.
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Origin of cocked hat

First recorded in 1665–75; cock2 + -ed2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for knock into a cocked hat

cocked hat

noun
  1. a hat with opposing brims turned up and caught together in order to give two points (bicorn) or three points (tricorn)
  2. knock into a cocked hat slang to outdo or defeat
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with knock into a cocked hat

knock into a cocked hat

Debunk, render useless or unbelievable. For example, His findings knocked our theory into a cocked hat. This expression alludes to a style of hat with the brim turned up on three sides—the three-cornered (tricorne) hat worn by officers in the American Revolution—giving it a distorted look. [Early 1800s]

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The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.