The Commodore Business Machines logo, whICh strongly resembles a poultry part. Rendered in ASCII as "C=". With the arguable exception of the Amiga, Commodore' s computers 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. [Jargon File]