According to the search results, "rizz" is a slang term that refers to someones ability to flirt and be charming, especially for their verbal communication while pursuing a romantic interest. It can be used as a noun or verb, depending on the sentence. If someone has "rizz," they are often considered attractive or alluring because of their charismatic way of communicating. The term was popularized by live streamer and YouTuber Kai Cenat, who used the term around 2021. It is also believed that "rizz" derives from the word "charisma," or "a special magnetic charm or appeal".