Morph forwards is a generic, stock-style transition effect rather than a line from a film, show or viral clip, so it has no single widely documented origin. Sounds like this are shared on soundboard sites and in editing packs because they give creators a ready-made audio cue for a morph, without needing to design one from scratch. Its short length makes it easy to reuse across short-form videos, memes and gameplay edits, where a quick transformation needs to read instantly. That practical, reusable quality is why it continues to appear in transformation and reveal edits.