anorak

plural anoraks

1. A heavy weatherproof jacket with an attached hood; a parka or windcheater.

   Don't ever use the hood on your anorak; and, if you do, for heaven's sake don't pull the string tight so that you peep out like a little baby in a siren suit.

   1980, Bill Oddie, Bill Oddie's Little Black Bird Book, page 61

2. UKslangA person with an unusual or obsessive interest in a niche subject, especially trains.

   He has described himself as the uber-geek, an anorak's anorak, a standard bearer for fellow Star Trekkies everywhere, and his air of bland, amiable bafflement has served him remarkably well in a string of TV and film roles.

   2007 February 15, Maev Kennedy, “I used to say he was England's answer to John Cusack. Now I think he's England's answer to Jack Lemmon”, in The Guardian, archived from the original on 24 Jan 2025