chicken head: n. [Commodore] The Commodore Business Machines
logo, which strongly resembles a poultry part (within Commodore
itself the logo was always called `chicken lips'). Rendered in
ASCII as `C='. With the arguable exception of the Amiga (see
amoeba), Commodore's machines are notoriously crocky little bitty
boxes (see also PETSCII). Thus, this usage may owe something to
Philip K. Dick's novel "Do Androids Dream of Electric Sheep?" (the
basis for the movie "Blade Runner"; the novel is now sold under that
title), in which a `chickenhead' is a mutant with below-average
intelligence.