This clip comes from user generated soundboard culture, where short, odd vocal noises are clipped, named descriptively, and shared for quick meme use. The rat child label is not tied to a confirmed movie, show, or character, but describes how the squeaky ee ee delivery sounds to listeners. It spread as a reaction sound for rat-like, childish, or hyper behavior in short videos and edits. Its appeal is its simplicity, a few seconds of high pitched squeaking that viewers instantly recognize as intentionally annoying, goofy, and perfect for a punchline without needing context.