(Zool.) 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.
... directed at Punch's "three Puppets—Wronghead (Mr. Douglas Jerrold), Sleekhead (Mr. Gilbert a Beckett), and Thickhead (Mr. Mark Lemon)—formidable names, Punch! and, as being three to one, formidable odds!" He refers to his friends having warned him not to rebel against Punch's ... — The History of "Punch" • M. H. Spielmann
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