chicken out


verb

(intr, adverb) informal to fail to do something through fear or lack of conviction

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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 chicken out

chicken out

Back out from fear, lose one's nerve, as in In the end I chickened out and took the easier route down the mountain. Chicken is a popular synonym for “cowardly,” a usage arising in the 1600s and 1700s but then apparently abandoned until the 20th century. [Slang; c. 1930]

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