Krosh is the pink rabbit from Smeshariki, the long-running Russian animated series also known internationally as Kikoriki, where his fast, excitable personality made him one of its most recognisable characters. Short voice clips from the show have circulated widely in Russian-language meme edits, chats and short videos, where a single expressive word can carry a whole reaction. This brief 'What?' works in that context because it needs no translation for regular viewers, and its clear confusion fits pranks, fails and misunderstandings. It remains popular as a quick, nostalgic reaction for fans of the cartoon.