This clip appears to be a user recording made with a simple voice recorder app, then tagged with reverb and farts to signal its two main traits: the echoing effect and the crude subject matter. Uploaded without a clear original author, it reads as a homemade prank sound rather than a scene from a film or show. Like the classic fart with reverb and the drawn-out long brain fart, it circulates among meme pages and soundboards where short gross-out gags are evergreen. Creators keep reaching for it because a loud, echoing fart needs no setup and delivers an instant reaction.