AFK

Abbrev. for Away From Keyboard. Used to notify others that you will be
momentarily unavailable online. eg. Let's not go kill that frost giant yet,
I need to go AFK to make a phone call. Often MUDs will have a command to
politely inform others of your absence when they try to talk with you. The
term is not restricted to MUDs, however, and has become common in many chat
situations, from IRC to Unix talk.

