chirr 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.
a shrill, trilled sound, as of some insects or birds
to make such a sound
chirr definition by American Heritage Dictionary
A harsh trilling sound, such as that made by crickets.intransitive verb chirred, chirr·ing, chirrs
To make a harsh trilling sound.