The phrase is closely associated with eight-time Mr. Olympia Ronnie Coleman, whose training videos helped make “light weight, baby” and “yeah buddy” famous online. The clip spread widely through bodybuilding forums, YouTube gym compilations and later short-form meme edits. It remains popular because the line is both genuinely motivating and unintentionally funny when used for tasks that are clearly not light weight. That mix of hype and irony keeps it circulating in fitness and reaction content.