If you jiggle something, you move it quickly up and down or from side to side. He jiggled the doorknob noisily
move to and fro; "Don't jiggle your finger while the nurse is putting on the bandage!"
To jiggle around means to move quickly up and down or from side to side. He tapped his feet, hummed tunes and jiggled about. to make something move from side to side or up and down with short quick movements, or to move like this (JIG)