The spelling coom is the joke online, turning the familiar kingdom come phrasing into a misheard, slightly garbled meme audio that people quote exactly as written. Clips using it circulate on short video and soundboard pages, usually detached from any longer performance and shared for the line alone. Because the clip runs about thirty seconds, editors often lift the whole build rather than a single word. It stays in use because the grand wording fits almost any self-important entrance, while the odd spelling tells viewers the tone is parody, not serious drama.