Mutant Enemy Productions is the company behind Buffy the Vampire Slayer, and its closing logo became famous in its own right during the show's original run in the late 1990s. The brief animated monster and its gruff Grr Argh sign-off turned a standard production card into a catchphrase that fans quoted and imitated long after each episode ended. As Buffy clips circulated online, the sound was lifted for memes and edits, where it still works today as an instantly recognisable way to close a video with a grumpy, monstrous joke.