Probando eructo appears to be a user-uploaded meme clip rather than a line from a known film, show or viral creator, and no widely documented source has been attached to it. Its Spanish title simply means testing a burp, which matches the recording itself. Clips like this spread through soundboards and short-form video because they are instantly recognisable, easy to drop into an edit and funny precisely because they are crude. With only a few seconds of audio, it works as a reusable reaction gag rather than a quote tied to a specific story.