The Joker first appeared as Batman's archenemy in DC Comics in 1940, and their cat-and-mouse rivalry has since carried through films, animation and games. In Brazilian Portuguese he is called Coringa, which explains this clip's title and its circulation on Portuguese-language meme pages and soundboards. Short sounds like this spread because they compress a well-known character dynamic into a single shareable reaction, easy to repost in chats and edits. The Batman crush angle is a fan-made joke on that rivalry, not an official line from a film or series.