Must be in all capitals, and typed in full. Logs out of your character and leaves the game. Your character remains at the location you are in when you log out, although it might be moved elsewhere while you are 'asleep.' If you have more than one connection to the MUCK, QUIT will only disconnect the connection in which you type the command.
QUIT can be typed at any time, even if you are in an editor or running a program.