[1] : The Collaborative International Dictionary of English v.0.48

jitterbug \jitterbug\ n.
   a fast and vigorous american dance that was popular in the
   1940s, having few standardized steps and personalized with
   various twirls, twists, and acrobatic moves; it was performed
   often to the accompaniment of swing or boogie-woogie tunes.
   wordnet 1.5 +pjc

[2] : The Collaborative International Dictionary of English v.0.48

jitterbug \jitterbug\ v. i.
   to do the jitterbug.
   wordnet 1.5

[3] : WordNet (r) 2.0

jitterbug
     n : a jerky american dance that was popular in the 1940s
     v : do the jitterbug
     also: jitterbugging, jitterbugged
see also:
jitterbugging jitterbugged 

Jitterbug >> J Words
Jitterbug, definition of term: Jitterbug
jitterbug_pag1.html