The clip is credited on TikTok to creator @inbloomie, where it was shared as a short, suspicious-sounding cow moo and picked up by other creators for comedy edits. Its appeal leans on the slang word sussy, shorthand in the Among Us sus meme for someone acting suspicious, which makes a farm animal sound feel like an accusation. As short-form videos reused it for betrayals, guilty looks and unexpected reveals, the moo became a quick audio shorthand for distrust that still works because it is instantly recognisable and only lasts a moment.