A punchline is the concluding part of a joke, story, or short video that delivers the humorous or climactic revelation. In the context of short-form video content, the punchline is crucial for maximizing engagement and shareability, as it provides the payoff after a “setup” or build-up. An effective punchline can elicit strong reactions, encourage replays, and drive viral spread, making it a key element in creating memorable and impactful content.