Definition from Wiktionary, the free dictionary
- (UK, informal) Obsessively absorbed in a subject, especially an unusual or obscure subject.
- 1999, Phil Race, Steven Higgins, Nick Packard, 500 ICT Tips for Primary Teachers 
- Joining a 'computer group' may sound incredibly anorakish but you'll probably find that most of the other members are bearably human!
- 2003, Gary Valentine Lachman, Turn Off Your Mind: The Mystic Sixties and the Dark Side of the Age of Aquarius 
- College readers of Tolkien's work had a tenacity and anorakish single-mindedness matched only by the Trekkies who would soon follow.
- 2006: The Times (London, September 2), "Only the togas have changed"
- The son of a Midlands printer, Harris as a teenager developed an interest in politics as anorakish as other boys’ obsessions with football or pop ...
- 2006: Rowan Williams, Archbishop of Canterbury, (July 8)
- Now I make this point not just to add a sort of anorakish-footnote to the debate, but so that the episcopate that we are discussing comes a little more clearly into focus for us, in connection to many of the issues that have already been touched upon.
- 2006: John Bercow, Member of Parliament (UK), floor debate in the House of Commons, Hansard (June 5)
- The right hon. Lady gave me the facial impression that she thought my point was narrow, anorakish or even—perish the thought—tendentious.
- 1999, Phil Race, Steven Higgins, Nick Packard, 500 ICT Tips for Primary Teachers