Ticktock is an onomatopoeic word that imitates the sound of a clock ticking.
In modern usage, ticktock can refer to:
1. The popular short video platform TikTok (sometimes spelled as Ticktock)
2. A countdown or time pressure situation ("the ticktock of the deadline")
3. A detailed chronological account of events ("the ticktock of the investigation")
4. In slang, it can mean gossip or rumors spreading quickly