propeller head

English

Alternative forms

Etymology

In reference to people, exemplified by the kind of child who wore a propeller beanie.

Noun

propeller head (plural propeller heads)

  1. The hub of a propeller, into which the blades fit.
  2. (slang, somewhat derogatory) A person deeply absorbed in an academic field or technical interest, especially to the exclusion of social activities.

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See also