Source : Free On-Line Dictionary of Computing

true hacker
     
         (By analogy with "trufan" from SF fandom) One who
        exemplifies the primary values of hacker culture, especially
        competence and helpfulness to other hackers.  A high
        compliment.  "He spent 6 hours helping me bring up UUCP and
        netnews on my FOOBAR 4000 last week - manifestly the act of a
        true-hacker".
     
        Compare {demigod}, opposite: {munchkin}.
     
        [{Jargon File}]
     
        (1996-01-07)