Otakus horribles circulates online as a TikTok trend sound rather than a clip tied to a widely documented film, series or creator, so its exact original upload is not clearly established. Its tag and short length suit the platform, where creators reuse short spoken phrases to label a moment instantly. The phrase itself is Spanish for horrible otakus, which explains its use in Spanish-language memes and reaction edits that poke fun at extreme anime fandom. That shared shorthand keeps it useful whenever a new cringe clip needs a quick, recognisable caption.