The exact original recording behind this clip is not documented, but its structure follows a familiar internet joke format in which a serious-sounding setup is deliberately ruined by a crude sound effect. Short clips like this spread through soundboards, reaction videos and social edits because they are easy to recognise, easy to drop into a scene and instantly understood without context. The fart tag attached to the upload helps listeners find it alongside other prank sounds. Its continued use comes from that simple contrast, a phrase that promises wisdom followed by a noise that promises nothing at all.
About this sound
A short spoken phrase, well you know what they say, followed by a loud comic fart used as a punchline in memes and reaction clips for quick comedic timing.
This nine-second clip opens with a calm, conversational voice delivering the familiar setup line, well, you know what they say, as if a piece of wisdom is about to follow. Instead of a verbal punchline, the speaker is cut off by a loud, cartoonish fart that lands with a wet, exaggerated burst and then trails off, leaving a brief silence that makes the joke feel even sillier. The contrast between the earnest setup and the crude payoff is the whole point, turning a moment that sounds serious into instant slapstick. Listeners laugh because the expectation is broken so abruptly, before they have time to guess what comes next.