Rizz comes from charisma and spread as Gen Z slang through Twitch streams and TikTok in the early 2020s, where it became shorthand for skill at flirting. Short audio clips using the word followed the slang, turning a single label into a reaction that could rate a moment without any explanation. It is still used because the meaning is instantly understood, whether creators are praising real confidence, teasing a friend, or framing an awkward attempt as comedy in edits, streams, and group chats.