1. move about lightly and quickly from side to side or up and down: "his head jiggles up and down as he speaks"Similarfidgetwrigglesquirmmove restlesslyinformal:have ants in one's pants
▪ shake (something) lightly up and down or from side to side:"he was jiggling his car keys in his hand"Similarshakejigjogglejogwagglewigglejerk
noun
1. a quick light shake:"give that rack a jiggle"
Word Originmid 19th century: partly an alteration of joggle1, reinforced by jig.