wing nut

or wing·nut

Origin of wing nut

First recorded in 1895–1900
Also called butterfly nut, thumbnut. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for wing nut

Historical Examples of wing nut

British Dictionary definitions for wing nut

wing nut

  1. a threaded nut tightened by hand by means of two flat lugs or wings projecting from the central bodyAlso called: butterfly nut
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