Boys Grammar is a gay short movie about a gay boy named Gareth. Gareth is a swimmer. Other boy swimmers know that he is gay and keep hurling derogatory anti gay remarks at him. One day in the showers one of the boys named Nick finds Gareth's book with images of male models in swimming gear. He tries to take the book from Nick but is overwhelmed. He explains he has the pictures because he likes the human form. The other boys come over and drag Gareth into the shower and strip him. They then use an object to sodomize him.
Back at home Gareth insists to his dad on being transferred from the school. The dad insists that what does not kill you makes you stronger. Gareth's brother comes over for dinner with Nick the same boy that was involved in the shower incident. Gareth gets upset and jumps on Nick hitting him to the surprise of his father and brother.