The title pairs Reimu, the shrine maiden from the Touhou Project games, with a Japanese internet phrase that roughly means laughing while losing. In online meme culture, short character clips like this travel as reaction sounds rather than as full scenes, moving from fan videos and streams into edits where a single second can carry the joke. Its staying power comes from that narrow use: it does not explain a situation, it judges it, and viewers who know the reference instantly read it as playful teasing after a defeat.