6 letters · 9 points in Scrabble
noun (British informal) pork sausage
noun firework consisting of a small explosive charge and fuse in a heavy paper casing
originFrom bang + -er. The sausages were so called because of their excess water content and impervious skin, leading to the risk of explosion if not punctured before cooking.
Etymology from Wiktionary, CC BY-SA 3.0