true-hacker (n.)
[analogy with ‘trufan’ from SF fandom] One who exemplifies the primary values of hacker culture, esp. 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, oppose munchkin.