1. ticktack - Noun
2. ticktack - Verb
3. ticktack - Interjection
A noise like that made by a clock or a watch.
A kind of backgammon played both with men and pegs; tricktrack.
With a ticking noise, like that of a watch.
Source: Webster's dictionarythe clocks were ticking Source: Internet
the grandfather clock beat midnight Source: Internet