ticktack verb 2noun 2exclamation 1forms 3 verb2 •To make that kind of noise. •(US, Canada) To play a prank that involves making noise outside a person's house by various means. noun2 •A repeated ticking noise like that made by a clock or a watch. •A kind of backgammon played with both men and pegs.And that those pretended Tumults were chastiz'd by thir own Army for new Tumults, is not prov'd by a Game at Tictack with words — 1649 exclamation1 •(old-fashioned) Dated form of tick tock. formsticktacked · ticktacking · ticktacks