http://msgplus.net/index.php?view=cmdtag
If you look at that there are some commands (okay, ALL commands supported in chats with your friends) But anyway, at the bottom it states this:
Command
secret command
Paramater
(none)
"on"
"off"
Description
Triggers the Word Duel easter egg
Enables the answer dialog
Disabled the answer dialog
Does anyone know this secret command? (Would you share it with me too?)