Starburns Industries is a Los Angeles animation studio known for its work on Rick and Morty and other animated projects, and its production card is a familiar sight at the end of episodes. The short sound attached to that card has been lifted by fans and reused online as a compact sign-off for edits, parodies and reaction clips. Because it is instantly linked to a recognisable studio style, it still works as a quick shorthand for animation, comedy and internet culture without needing any explanation.