The clip appeared on a user-generated soundboard under the Chinese title 偷測腦, romanized as Tou Ce Nao, with no credited source attached. Short meme sounds like this typically travel through short-video edits and reaction compilations, where a two-second sting is all a creator needs to sell a joke. Its appeal is the title itself: the idea of secretly testing someone's brain maps neatly onto suspicion and mind-reading gags, so editors reach for it whenever a scene needs a quick, knowing nudge that the audience is in on the trick.