One of the most eccentric vocalists ever to hit the jazz scene, Slim Gaillard became a legendary cult figure thanks to his own privately invented jive dialect "vout," a variation on hipster slang composed of imaginary nonsense words ("oreenie" and "oroonie" being two other examples). Gaillard's comic performances, laid-back cool, and supremely silly songs made him a popular entertainer from the late '30s to the early '50s, especially on the West Coast, and several of his compositions became genuine hits, including "Flat Foot Floogie" and "Cement Mixer." Versatility was not Gai...