The EFN or Epstein FN Song is a viral dark-humor parody that blends the controversies surrounding Jeffrey Epstein with the gameplay culture of Fortnite. The meme typically features a catchy, AI-generated song that uses Fortnite terminology—like dropping on the island or victory royale—to make satirical references. It gained massive popularity on platforms like TikTok and X (formerly Twitter) as part of the brainrot content subculture, where creators use the absurdity of the mashup to shock or entertain. While controversial, the template is widely used to create surreal shitposts and meta-commentary on internet trends, solidifying its place in the modern meme landscape.