The phrase is Russian slang, a casual and rougher version of asking what someone has just shown you, and the clip circulates in Russian speaking meme spaces before spreading to wider soundboards. Editors reuse it as a standalone reaction meme because the delivery explains itself without translation. It is usually paired with screenshots, strange photos and short fail clips where the joke is pure confusion. Its popularity comes from that versatility, letting one short line comment on almost anything odd that appears on screen unexpectedly.