Fifi Bouvier

Fifi Bouvier Au Jus was a stubborn woman who lived during the 1940s. Her parents were Antoine and Françoise Bouvier. Her brother was Pépé Bouvier and her sisters were Monique, Lalique and Coquette Bouvier.

History
She is described as being a stubborn, cantankerous woman. She became a symbol of the French Resistance when she refused to move her out of the way as the  marched into Paris.

Behind the Laughter
"" is French for "with its own juice", but it's chiefly used as an idiomatic expression, meaning that someone is informed. It's possible "Au Jus" is just a title for Fifi Bouvier.