"An Chuilfionn " is a combination of An Cailin Fionn - Fair Haired Girl Thus spake JimmyC. Thus spake I:- Nonsense. It is nothing of the kind. The combination simply means "The fair-haired one" - in the context of the song, a young beautiful girl. There is also a reference to the mediaeval English prohibition on the entry into the Pale of the " irish with the coolin adorned." This seems to refer to a method of wearing the hair seen as peculiarly Irish and therefore unwelcome by the Foreigner. Conán