What is MWAAA?

1. the long form of hello, normally used on internet chats like IRC.
2. The call sign of the llama fraternity.

3. The noise an evil animal makes, any animal; but especially crazy ones that aren’t known to make any other noise. So a sheep will not go mwaaa, but a moose might.
4. (if used with more a's, like mwaaaaaaa)The noise teenagers make while dieing of boredom.