ed@e:~$ aptitude search jargon | grep Lexicon
i dict-jargon - dict package for The Jargon Lexicon
Essential.
An oldie but a goodie!
The Jargon File is a relic. Not only that, it's in some cases overly influenced by ESR's views, see for example that hacker politics are "more recently moderate-to-neoconservative" (as well as the anti-idiotarianism entry).