Related:

• fan: n. Without qualification, indicates a fan of science fiction, especially one who goes to {con}s and tends to hang out with other fans.
  Many hackers are fans, so this term has been imported from fannish slang...
• con n. [from SF fandom] A science-fiction convention.
  Not used of other sorts of conventions, such as professional meetings....
• con: [from SF fandom] n. A science-fiction convention.
  Not used of other sorts of conventions, such as professional meetings....
• propeller head n. Used by hackers, this is syn. with computer geek.
  Non-hackers sometimes use it to describe all techies....
• oid suff. [from Greek suffix -oid = `in the image of'] 1.
  Used as in mainstream slang English to indicate a poor imitation, a counterfeit, or some otherwise slightly bogus resemblance....
• propeller head: n. Used by hackers, this is syn. with {computer geek}.
  Non-hackers sometimes use it to describe all techies....
• oid: [from `android'] suff. 1. Used as in mainstream English to indicate a poor imitation, a counterfeit, or some otherwise slightly bogus resemblance.
  Hackers will happily use it with all sorts of non-Greco/Latin stem words that wouldn't keep company with it in mainstream English....
• How many furfen -- does it take to change a light bulb?
  Three. One to climb up the ladder and change the light bulb....
• eophilia: /nee`oh-fil'-ee-*/ n. The trait of being excited and pleased by novelty.
  Common among most hackers, SF fans, and members of several other connected leading-edge subcultures, including the pro-technology `Whole Earth' wing of the ecology movement, space activists, many members of Mensa, and the Discordian/neo-pagan underground....