dottle 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.
the tobacco residue left in a pipe after it has been smoked
Origin: Middle English dotelle, variant, variety of dosel, dossil
dottle definition by American Heritage Dictionary
The plug of tobacco ash left in the bowl of a pipe after it has been smoked.
Origin: From dot1, lump (obsolete).