The name comes from John Xina, the nickname that spread online after John Cena posted a 2021 video of himself eating ice cream and speaking Mandarin to promote his film work. Fans transcribed his phrase as bing chilling, and the clip was remixed across TikTok into social credit memes where Cena was jokingly presented as a Chinese citizen being scored. John Sina is a common misspelling of that nickname, and the audio keeps circulating in edits, remixes and impression videos years later.