The Roblox oof became famous as the default death sound in Roblox, the online game platform where players build and share virtual worlds. For years it played whenever an avatar was eliminated, making it familiar to millions of young players and streamers. Clips of the sound spread through YouTube, TikTok and memes, where it became shorthand for failing in a game or in real life. Even after Roblox changed its default death sound, the original oof kept circulating as a nostalgic meme and editing staple.