chan

noun4

1. •
   (Internet, informal) An imageboard.
2. •
   (slang, old-fashioned) Fanwork depicting sexual relationships betwen an adult and a minor;
3. •
   (slang, old-fashioned) or between two underage characters.
4. •
   (Internet, informal) An IRC channel.

   • I tried, but I never get anyone in the chan! I don't know how/where to advertise... maybe we should set up a meeting time or something? — 1997

noun1

1. •
   A major Chinese school of Mahayana Buddhism characterized by sudden enlightenment achieved by indirect means, developed in Japan as Zen.