Pumpernickel an old Bavarian term for "hard", either referring to the process used to grind the grain into flour, or the density of the final bread product. According to "Langenscheidts Taschen Wörterbücher" (1956), it refers to a form of "pumping work". The philologist Johann Christoph Adelung states that the word has an origin in the Germanic vernacular where was a New High German synonym for being flatulent, and was a form of the name Nicholas, commonly associated with a goblin or devil (e.g. "Old Nick", a familiar name for Satan), or more generally for a malevolent spirit or demon. Hence, "pumpernickel"
The Scarlet Pumpernickel which Daffy compares his own daring stunts with those of Errol Flynn. The Grand Duke and the Scarlet Pumpernickel engage in an intense duel, but no conclusive ending is given as to who ultimately wins the battle and what happens at the end. Daffy, as the scriptwriter, either having only thought of the beginning and middle of the story or lost the rest of his script underneath a huge pile of pages, and being pressured by the enthusiastic J.L., overdoes the ending as an unlikely series of random and accelerating natural disasters; a thunderstorm breaking a dam, a cavalry charge