Clock ticking is one of the oldest and most recognisable sound effects in audio and film, long used to signal waiting, deadlines and the passage of time without dialogue. Because the rhythm is instantly understood across languages, short ticking clips have become a staple of online video, memes and short-form edits, where a few seconds can set up a countdown or a tense pause. The sound works equally well in comedy, when the wait drags on too long, and in drama, when every second matters.