Why Rub has circulated as a short reaction clip rather than as a line tied to one widely documented scene, so its appeal comes from the question itself instead of a famous source. Creators use the puzzled wording to call out odd, repetitive or unexplained rubbing in videos, gaming clips and chat-style edits, where the humour depends on timing rather than context. Because the phrase is short, direct and easy to recognise, it has stayed useful as a quick shorthand for confusion, especially when a visual gag needs a spoken reaction without a longer explanation.