What's a 'blunderbuss'?

Increase your vocabulary and you’ll make your writing more precise. That's why I provide a word of the week. Today's word: blunderbuss

German Flintlock Blunderbuss Pistol, 1700's - Irongate Armory

Blunderbuss with Spring Bayonet (Black Powder) - Pirate Fashions

How effective were blunderbusses and how do they compare to modern shotguns? - Quora

Blunderbuss - Super Mario Wiki, the Mario encyclopedia

Dutch Flintlock Blunderbuss

British EAST INDIA COMPANY 1812 Dated FLINTLOCK Naval BLUNDERBUSS Antique SCARCE Early 19th Century Close Range Weapon for the High Seas!

Selly Manor Object of the month: Blunderbuss

Denix Left Handed Pirate Flintlock Blunderbuss Pistol, Antique Gray : Sports & Outdoors

Blunderbuss — WOINGEAR