Related:

• guru n. [Unix] An expert. Implies not only wizard skill but also a history of being a knowledge resource for others.
  Less often, used (with a qualifier) for other experts on other systems, as in `VMS guru'....
• wizard: n. 1. A person who knows how a complex piece of software or hardware works (that is, who {grok}s it)
  esp. someone who can find and fix bugs quickly in an emergency....
• ource of all good bits: n. A person from whom (or a place from which) useful information may be obtained.
  If you need to know about a program, a {guru} might be the source of all good bits....
• weenie: n. 1. [on BBSes] Any of a species of luser resembling a less amusing version of {BIFF} that infests many {BBS} systems.
  The typical weenie is a teenage boy with poor social skills travelling under a grandiose {handle} derived from fantasy or heavy-metal rock lyrics....
• wizard n. 1. Transitively, a person who knows how a complex piece of software or hardware works (that is, who groks it)
  esp. someone who can find and fix bugs quickly in an emergency....
• house wizard: [prob. from ad-agency tradetalk, `house freak'] n.
  A hacker occupying a technical-specialist, R&D, or systems position at a commercial shop....
• kahuna: /k*-hoo'n*/ [IBM: from the Hawaiian title for a shaman] n.
  Synonym for {wizard}, {guru}. -- The AI Hackers Dictionary...
• weenie n. 1. [on BBSes] Any of a species of luser resembling a less amusing version of B1FF that infests many BBS systems.
  The typical weenie is a teenage boy with poor social skills travelling under a grandiose handle derived from fantasy or heavy-metal rock lyrics....
• UNIX weenie: [ITS] n. 1. A derogatory play on `UNIX wizard', common among hackers who use UNIX by necessity but would prefer alternatives.
  The implication is that although the person in question may consider mastery of UNIX arcana to be a wizardly skill, the only real skill involved is the ability to tolerate (and the bad taste to wallow in) the incoherence and needless complexity that is alleged to infest many UNIX programs....