The phrase yi ti tui san bu circulates online mainly as a very short soundboard clip rather than as a widely documented meme with a single known source. Its appeal comes from its brevity and its literal image of moving back, which makes it easy to reuse across different languages and contexts without needing a translation. Short-form creators tend to save one-second reaction sounds like this one because they can be dropped into edits, streams and chat replies without interrupting the flow, keeping the joke quick and instantly readable.