Come on, man became one of Joe Biden's most recognisable catchphrases during his years in national politics, repeated in debates, interviews and campaign appearances whenever he wanted to brush aside a claim he found absurd. The short, exasperated delivery made it easy to lift from longer speeches and reuse online, where it spread through reaction videos, political memes and short-form clips. Its appeal has lasted because it works beyond politics, giving creators a familiar, good-natured way to say that something simply does not make sense.