The line comes from Chaves, the Mexican sitcom El Chavo del Ocho, which became popular in Brazil through its Portuguese dub. Kiko, the neighbourhood boy, is one of its most recognisable characters, and his name alone signals the show to Brazilian viewers. Like Ai que burro, da 0 pra ele, short dubbed lines like this one are often clipped from episodes and shared as reaction sounds, because the expressive delivery translates easily outside the original scene. In meme edits and chat messages it now works as a joke about size and surprise, keeping the show familiar to new audiences.