What does the name Lula Belle mean?

Lula is traditionally and originally an English diminutive (nickname) of Louise (and other names that sound similar). Louise comes from the masculine French, English, and Dutch Louis, which was born from German Ludwig, and ultimately means "Famous Warrior" (or more accurately: "fame" and "warrior").

Belle is a short form of Isabelle, or related names. It is also often associated with the identical Italian and French Word, meaning "Beautiful."