Dragons' Den is a long-running television business show in which entrepreneurs pitch their companies to a panel of wealthy investors, known as dragons, who decide whether to invest or walk away. Saying I'm out became the show's signature way of ending a negotiation, and short clips of the line spread through reaction videos, memes and short-form edits because it needs no context to understand. It remains popular because it delivers a clean, instantly recognisable rejection that works for almost any failed deal, pitch or idea.