Meaning temporary popular enthusiasm is from 1902; that of highly flattering review is from 1926. Sense of rowdy party is from 1960; rave-up was British slang for wild party from 1940; specific modern sense of mass party with loud, fast electronic music and often psychedelic drugs is from 1989.
Jaq (real name Jacques) and Gus (real name Octavius) are two mice who serve as Cinderella's sidekicks. Gus has a penchant for cheese. In the first film, Cinderella rescues the mice from traps and the cat Lucifer and dresses and feeds them. They perform many favors in return.
Lucifer appears in the live-action adaptation of the 1950 classic, reprising his role as Lady Tremaine's cat, though he plays a much smaller role in this film. Lucifer was first seen during the Tremaines' arrival at Cinderella's home, upon his mistress' introduction.