The line is best known as a Willy Sabor bit, the Chilean television entertainer whose catchphrases have circulated on Chilean TV comedy for years. Short, quotable and instantly recognizable to his audience, the question escaped the studio and became a standalone reaction clip shared across meme pages, soundboards and messaging apps. Its staying power comes from versatility: '¿de quién es la casa?' fits any video where ownership, hospitality or showing off a space is the joke, so creators keep reaching for it whenever a door swings open on camera.