Che eto is a common Russian phrase that translates as what is this, and online it works less as a quotation than as a reusable reaction. Short clips built around the question circulate on soundboards and in meme edits because the meaning is easy to grasp from tone and context, even for viewers who do not understand Russian. Creators use it to flag confusion, disbelief or curiosity, and its short, punchy form makes it easy to reuse across gaming clips, reaction videos and everyday funny moments.