Being the fire chief is best defined as speaking out of your head, or talking in your sleep. While talking on the phone, should you suddenly become tired and start speaking crazy talk, you can be accused of "being the fire chief"
One night Eli was talking to Lauren on the phone and upon becoming very tired, Eli stated that he was the fire chief and proceeded to go into great detail of how he runs the fire house, hence he was "being the fire chief". This is the origin of this term.
by ChiefEP1234 June 13, 2010