The Cowgo clip is tied to Garry's Mod through its recording metadata, which points to gameplay captured on PC rather than a film, television show, or commercial release. That kind of short, user-captured audio is exactly how many soundboard clips spread: a funny moment is saved, shared, and then reused by other players and editors who recognise the joke instantly. Because Cowgo is under three seconds long and instantly odd, it survives as a quick reaction insert in gameplay videos and meme edits, where a longer clip would slow the joke down.