Mary Saotome is a central character in Kakegurui, the anime about high-stakes gambling at Hyakkaou Private Academy, which first aired in 2017. Her repeated use of baka to belittle rivals became a recognisable part of her sharp, competitive personality. Clips of the line circulated on soundboards and in anime edits, where fans reused it as a short insult for failed bets and overconfident rivals. It remains popular because the delivery is instantly recognisable to Kakegurui fans and needs no context to land as a tease.