touchwood definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
dried, decayed wood or dried fungus used as tinder
Origin: uncertain or unknown; perhaps altered (infl. by touch) ; from Middle English tache, touchwood
touchwood definition by American Heritage Dictionary
Material, such as decayed wood, that is used as tinder; punk.
Origin: From its being easy to ignite.