Definition of propeller-headed in English:

propeller-headed

adjective

US
slang, derogatory
  • Of a person: dedicated to an unfashionable or highly technical subject, frequently to the perceived exclusion of normal social interaction; nerdy.

Origin

1980s; earliest use found in Digital Review. From propeller + headed, after propeller-head.

Pronunciation

propeller-headed

/prəˈpɛləhɛdɪd/