There is no single famous film or show behind this clip, and that is part of why it travels so easily online. Aye waddup is a piece of casual internet slang, a shortened, relaxed way of saying what is up, and short greeting sounds like this are widely shared on soundboards, in meme edits and in reaction videos. Creators reuse it because it is instantly understood, needs no context and fits almost any informal entrance. Its brevity makes it easy to drop into short-form videos, streams and group chats.