He's cooked comes from internet slang for someone who is finished, ruined, or beyond saving, a phrase that spread through short-form video and gaming commentary rather than a single film or show. Creators began pairing the line with clips of failed plays, bad decisions, and public embarrassments, where the verdict lands harder than a longer explanation. Its brevity helped it travel across TikTok, YouTube Shorts, and reaction edits, and it remains popular because it instantly signals defeat without needing context, setup, or a punchline of its own.