Pronunciation: (thik'hed"), [key]
1. a stupid person; blockhead.
2. Also called whistler. any of several Old World birds of the genus Pachycephala, chiefly of various islands in the Pacific Ocean, related to the flycatchers, and having a melodious whistling call.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.