Correct-answer sounds have long been part of quizzes, game shows and learning apps, where a short audio cue tells players immediately that they got it right. Online, that same cue has become a handy editing shorthand, appearing in reaction videos, trivia challenges, meme compilations and short-form clips whenever a creator wants to confirm a prediction or a guess. Its appeal is its simplicity: listeners understand it in less than two seconds, even without any on-screen text, so it keeps working across formats, languages and audiences.