I’m Teaching a Foreign Exchange Student How to Survive

My mom back at home has a foreign exchange student from Egypt. His name is Yussef. He is sixteen, and he plays basketball for Egypt's national U-18 team. Because he is foreign, and sometimes oblivious to "friendly" misguided high school behavior, my mom asked me to teach him the "slangs". I gave him the ones I knew. I feel there's more out there he needs to know. What drug names, sexual innuendos, etc, should Yussef know and watch out for?