propeller head
(redirected from Propellor head)propeller head
(jargon)Used by hackers, this is synonym with computer geek. Non-hackers sometimes use it to describe all techies.
Probably derives from SF fandom's tradition (originally
invented by old-time fan Ray Faraday Nelson) of propeller
beanies as fannish insignia (though nobody actually wears them
except as a joke).