jitterbug

Short definition from Wiktionary

Noun

1. 1
   A nervous or jittery person.
2. 2
   A jazz musician or aficionado.
3. 3
   An uptempo jazz or swing dance which embellishes on the two-step pattern and frequently incorporates acrobatic style swing steps.
4. 4
   Synonym of diddley bow (“type of stringed instrument”).

Verb

1. 1
   To dance the jitterbug.