It's just an edit of Elliot Rodgers with the song that goes "I'm walking sex, pedal to the metal with the disco tech. I'll be grinding up the diamond OG Now light up the joint, I'm tryna OD" which is a remix/mashup of "They Like The Way I Grind by Ayesha Erotica" / "Hands Up." Pretty short loop, just few jumpcuts of him driving and putting on sunglasses I think. Seen in a few "lonely" or "incel" webm threads on /wsg/. Thanks.