Name given to a bald man to point out to them that they are indeed bald (usually derogertory). deriving from the animal the bald eagle, regal in appearence however folically challenge.
Term can also be used to signify the entry of a bald man or 'eagle' into a room or establishment by shouting 'the eagle has landed'
As john lord of grassington entered the room he was met with a loud chorus of 'The eagle has landed' by his adoring sons... There where no survivors.