The clip comes from I, Robot, the 2004 science-fiction film about robots serving humans in a near-future Chicago. In the film, the robots speak in calm, controlled voices, which makes a blunt refusal stand out even more. Online, the short 'no' was lifted as a standalone reaction sound and shared on meme soundboards and in short videos, where it became shorthand for an instant, non-negotiable rejection. Like Darth Vader's long no, it works because audiences already recognise the voice and the moment, so the joke needs no explanation.