When someone is charming and can approach someone and talk to someone in a confident and flirty way and it works.
Pete Davidson has serious rizz.
History and usage
The origin of the word "rizz" can be traced back to mid-2021 when popular Twitch creator, Kai Cenat, would talk to people about how to have "rizz." He would often describe to term as either "L rizz" or "W rizz" when sharing about someone's "winning" or "losing" abilities at their charm when attracting or striking up a conversation with someone that was a potential love interest.
Rizz is believed to have derived from the word charisma and used mainly by members of Generation Z.