Sounds like this spread through short form meme edits where a single exaggerated yell could carry an entire joke without any setup. The skeleton pairing made it especially popular around Halloween and in horror game highlights, where creators reuse the roar for enemies that look scary but act silly. It sits in the same family as other loud reaction clips like the scream meme and FAAAH, where timing matters more than context. Because the clip is short and instantly recognisable, it keeps being recycled for remixes, soundboards and reaction videos.