Related:

• fan n. Without qualification, indicates a fan of science fiction, especially one who goes to cons 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....
• 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....
• 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....
• 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....
• h: [from SF fandom] infix. A method of `marking' common words, i.
  e., calling attention to the fact that they are being used in a nonstandard, ironic, or humorous way....