Aunt Arnet
An Aunt Arnet is tactical move in role playing games or in real life tactical operations where one person in a group infiltrates the enemy group and redirects or deceives them. This is done so that the group they are actually loyal to can have an opening to either get by, defeat or control the enemy group.
dude i just totally hoped on my ally in wow and told the Allys the horde was attacking storm wind when they really went after iron forge. They totally fell for the Aunt Arnet.