The phrase belongs to the time-card style made famous by SpongeBob SquarePants, where a calm narrator announces how much time has passed between scenes instead of showing it. The show's dry, understated transitions became a shorthand in online video, and creators began reusing the announcement to skip boring parts of their own stories. Because the line is short, instantly recognisable and easy to place on a cut, it spread through memes, reaction edits and short-form videos, where it still signals a quick jump to the consequence.
About this sound
The Moments Later sound effect is the SpongeBob time-skip narration used to jump ahead in a story. Creators drop it before a reveal, fail or scene change.
This short clip is the calm, dry voice of the narrator announcing that a little time has passed, usually over a simple title card style pause in the edit. It sounds flat and matter-of-fact, almost bored, which is exactly why it lands so well after a dramatic setup. Instead of showing the boring middle part, the line skips straight to the payoff, and viewers instantly understand that something has changed. That contrast between the serious setup and the plain delivery makes the next moment feel funnier, more awkward or more surprising, depending on what follows.