Jiggle

['dʒɪg(ə)l] or ['dʒɪɡl]

(verb.) move to and fro; 'Don't jiggle your finger while the nurse is putting on the bandage!'.

Checked by Aida--From WordNet

(v. i.) To wriggle or frisk about; to move awkwardly; to shake up and down.

Editor: Zeke