A clan from the clan game runescape They like to flame people on urbandictionary because they have nothing else to do. They usually close down and then ten minutes later they re-open. AAO stands for against all odds.
Person 1: Did you hear that AAO closed down again?
Person 2: Yea, but it re-opened again this morning.
Person 1: Wow! I am so surprised! (Sarcasm)