The record scratch comes from the sound of a turntable needle scraping across or abruptly stopping a spinning vinyl record. Long before short-form video apps, editors used it in radio, film and TV comedy to mark a jarring interruption or a sudden rethink. Online, it became a staple reaction sound for freeze-frame jokes, awkward moment edits and hard tonal shifts. It still works because the sound is instantly recognizable and tells viewers, in less than a second, that the scene has sharply changed.