- a pocketknife, the blade of which is held by a spring and can be released suddenly, as by pressing a button.
Origin of switchblade
Also called switchblade knife, switch knife.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for switchblade
The switchblade snicked back and disappeared into a side pocket of the jacket, while Ord watched it with fascinated eyes.Remember the Alamo
R. R. Fehrenbach
The other two curs outa the same litter: Switchblade an' Turkey-Buzzard, over there.
The next day, Switchblade Joe Bonney came in to make payment on a note we were holding on him.
After a moment he withdrew it, and fumbled in his leg pocket withdrawing a switchblade knife.First on the Moon
- US and Canadian a knife with a retractable blade that springs out when a button is pressed
Also called (in Britain and certain other countries): flick knife
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
Word Origin and History for switchblade
Online Etymology Dictionary, © 2010 Douglas Harper