About

geek Slang.

–noun

  1. a computer expert or enthusiast (a term of pride as self-reference, but often considered offensive when used by outsiders.)
  2. a peculiar or otherwise dislikable person, esp. one who is perceived to be overly intellectual.
  3. a carnival performer who performs sensationally morbid or disgusting acts, as biting off the head of a live chicken.
Origin:
1915- 20; prob. var. of geck (mainly Scots) fool < D or LG gek

—Related forms
geeky, adjective