The sound comes from The Office, the American workplace sitcom known for its awkward humour and quotable reactions. The drawn-out no works on its own because the show's comedy often turns small office disappointments into dramatic moments, and that tone translates easily to short online clips. It spread through reaction videos, meme edits, and soundboards, where creators use it as a quick shorthand for disbelief or refusal. It remains popular because the delivery is instantly recognisable, even in just over a second, and it needs no setup to land.