Online, the three-knock pattern became a shorthand for the Tung Tung Tung Sahur meme, spreading through short-form videos, edits and soundboards where the rhythm alone was enough for viewers to recognise the joke. Creators reuse it because it needs no explanation, works in any language, and instantly sets up an absurd or menacing moment. Its brevity also makes it easy to drop into compilations, reaction clips and gaming videos, which has kept the knock familiar long after the first wave of posts, as a compact audio cue for surprise.