 Kingsley claimed the phrase "jaz her up" was used by plantation slaves and that in common vaudeville usage "jaz her up" or "put in jaz" meant to accelerate or add low comedy, while "jazbo" meant "hokum".Bandleader Art Hickman said "jazz" was named for Boyes Springs.He made the claim in the "San Francisco Examiner" of October 12, 1919 and "San Francisco Chronicle" of November 9, 1919.