Thickhead
Pronunciation : Thick"head`
Part of Speech : n.
Definition : 1. A thick-headed or stupid person. [Colloq.]
2. (Zo?l.)
Defn: Any one of several species of Australian singing birds of the genus Pachycephala. The males of some of the species are bright- colored. Some of the species are popularly called thrushes.
Source : Webster's Unabridged Dictionary, 1913