The phrase que pasa is a common informal Spanish greeting similar to whats up, and adding Chileno makes it a direct call out to a Chilean person. This clip circulates on soundboards as a standalone reaction with no confirmed original video, song or show attached to it. Its appeal comes from how short and repeatable the line is, which helped it spread through chat audios, meme pages and short form edits. Creators keep using it because one quick phrase can signal a greeting, a surprise entrance or friendly teasing without any setup.