Research shows that children with a richer vocabulary have a distinct intellectual and career advantage over those who don't. Rich vocabulary isn't fully built with spelling games, but with informal conversations with family and friends. With the help of moderated + fine-grained GenAI, Funny Brain utilizes children's urge for nonsense banter - and turns it into love of language and reading. Filled with short bursts of sarcasms and wit (nothing cliche), Funny Brain game is a novel experiment: Literary entertainment for children. It contains short quizzes that test for one's type of fun. Regardless of the test results, the fun is guaranteed. It's 2024 - too much of the tap-frenzy, cliche kids' movies, and endless scrolls. The real magic is in text. And it's back to make us witty and smarter!