The word "rizz" was created and popularized by Kai Cenat, a YouTuber and Twitch streamer, around 2021. It is believed to be a shortened form of "charisma," referring to someone's ability to charm or successfully flirt. Kai Cenat began using the term during his streams, and it quickly gained popularity through social media, especially TikTok, becoming widespread slang for charisma and charm. The word "rizz" was so influential that it was named Oxford's Word of the Year in 2023, solidifying its place in modern language.