1786: Another battle-ax, in the same collection. — Francis Grose, A Treatise on Ancient Armour and Weapons, page x.
(informal) A belligerent and often unattractive person, especially a woman.Naturally, she deeply resented having been called a battle-ax.
(informal) An electric guitar
2013 The instruments (one's named Baby) evoke tender talk from macho musicians. But some of these battle-ax beauties have seen more action than a roller derby queen: They bear the gashes and sweat stains to prove it. "108 Rock Star Guitars" reveals battle-ax beauty by Kiley Armstrong
