Ruido universitario is Spanish for university noise, and clips like this are shared online as generic campus ambience rather than as a quote from a particular show, film or creator. They are commonly used by video makers who need a believable school setting without recording their own crowd, and they work especially well in short-form edits, memes and classroom parodies where the setting needs to be clear in seconds. Because the sound is not tied to one recognisable moment, it stays flexible and can fit many different student and school themes.