High School Cocky Prick?

One of the kids in my group of about 5 close friends is super self centered. He always tries to be the center of attention and thinks he is the biggest bad *** that ever lived. Me and my friends diss each other but all in good fun. When he tries to diss someone though it is meant to really hurt them. Idk why but he is a complete dick to everybody. He says he doesnt cuss and lives a perfect life all because he is mormon. A few of us are fed up with his ****. He is always an asshole, thinks he is a perfect person, tries get the attention of everyone, he is always right, brags about how big his dick is, how doesn't masturbate, and says girls dont talk to him because he is intimidating. How the **** do i deal with this guy? Honestly i think he is gay, but what do i do to make him the shut the **** up?

P.S. When he starts arguing with you and you argue back, he tells you to calm down and acts like your immature. Seriously want to throat punch him,