El afilador has been a familiar figure in Spain and Latin America for generations, travelling streets with a sharpening wheel and announcing his service with a distinctive whistle and shouted call. Online, that call was shortened and exaggerated into a shareable meme sound, passed around in WhatsApp audios, short videos and soundboards. The stretched version in this clip plays on instant recognition for Spanish speakers and on pure silliness for everyone else, which explains why it keeps resurfacing as a reaction, an entrance joke and a random interruption in edits.