According to the Oxford English Dictionary (OED) the word "jitterbug" is a combination of the words "jitter" and "bug";both words are of unknown origin
The first use of the word "jitters" quoted by the OED is from 1929, Act II of the play Strictly Dishonorable by Preston Sturges where the character Isabelle says: "Willie's got the jitters" is answered by a judge "Jitters?" to which Isabelle answers "You know, he makes faces all the time." The second quote in the OED is from the N.Y. Press from 2 April 1930: "The game is played only after the mugs and wenches have taken on too much gin and they arrive at the state of jitters, a disease known among the common herd as heebie jeebies.
