AFK
From WoWWiki
Away from keyboard means a user is not at their computer. There is a command, /afk, which marks the user as "AFK". The name of the character will show up as <AFK>Name, and an auto-response will be sent to anyone who sends the flagged user a tell. A message can also be typed after /afk which will be included in the auto-reply. Auto responses will also be sent for ready checks.
Typing /afk while in a battleground also makes you leave that battleground. However, doing so will give the player a debuff called "Deserter" that prevents them from joining a battleground for 15 min. Generally this is irrelevant anyways, since you will most likely do so only for a reason, such as to go to an instance you were queued up for.
Example: Person A says: /afk eating food
Person B says: /w A Hello.
Person B receives: A is Away from Keyboard: eating food
What do you call AFK people on a PvP server?
- - A Free Kill.
AFK mechanics
- You are marked away automatically after 5 minutes without any interaction.
- You'll be logged off and sent to the character selection screen if you're AFK for more than 30 minutes.
- You'll be disconnected from the server if you're AFK for 30 more minutes.
In your Interface Options, Basics you can select "Auto Clear AFK", which will automatically unset the AFK flag when talking or moving. It should be noted that any input that would reset the AFK flag if auto clear AFK is enabled will also reset the afk timer, regardless the user having the option disabled.
Also see DND.
