This sound references Squid Game, the South Korean survival drama series released on Netflix in 2021. After the show became a global hit, its music and tones spread across short-form video, gaming edits and reaction clips. People kept using these cues because they instantly signal pressure, competition and the feeling that someone is about to face consequences. Even without showing the series itself, the audio quickly communicates a Squid Game-style atmosphere that audiences recognize from memes and parody videos.