battle-ax

noun4

1. •
   An ancient military weapon, an axe designed for combat, including (in heraldry) when borne on arms as a mark of prowess.

   • Another battle-ax, in the same collection. — 1786
2. •
   (informal, humorous) A domineering, antagonistic woman.

   • My mother-in-law is a real battle axe.
3. •
   (informal) An electric guitar.
4. •
   (Australia) An allotment of land at the rear of another property, with a long, narrow strip of land connecting it to the roadway.