This sound comes from Family Feud, the long-running television game show where families try to guess the most popular survey answers. The duplicate answer cue is played when a contestant gives a response that has already appeared, making it a natural shorthand for repetition. Online, creators use it as a reaction sound in short memes, compilations, and commentary clips because the meaning is clear even in a very short burst. Its staying power comes from that simple, universal joke: someone said the same thing again.