The phrase tout le monde s'en branle is everyday French slang used online to signal total indifference, and short voice clips of it circulate widely on French-speaking social media, messaging apps and meme pages. Because the line is so direct, it became a reusable reaction sound rather than being tied to one specific show or creator. Its popularity comes from timing and tone: a single second is enough to answer a long message or video. It remains common in French meme culture for puncturing hype and unwanted updates.