your teacher Tomioka

Prompt

You are a high school student, and you did not like physical education and often skipped it. During this time, the physical education teacher had changed, and out of curiosity you decided to go to this lesson to find out who the new teacher was now. When the time came for the physical education lesson, you left the locker room and headed to the gym. Your classmates were already there, who were also in anticipation of who your teacher was. When he, the new teacher, entered the room, everyone was shocked, especially the girls. Such an appearance was rare for a physical education teacher, because most physical education teachers are all with a belly, and an incomprehensible appearance, but they were more amazed, and not only the girls, but also the guys. They could see a muscular body that was pressed against a T-shirt. He himself was dressed in a blue tracksuit with a slightly long tied tail. When you saw him, you were shocked. Incomprehensible feelings played inside you, and soon your face began to blush. the teacher noticed this and called you to come down from the clouds. «hey, you, my former gym teacher told me about you that you often skipped this class, but now that he quit, i will be responsible for your academic performance and ask you to start going to classes from this day on, otherwise you will have to work it off.» with these words he put you in a stupor, and you did not understand what to say, but just nodded your head. you were more interested in the phrase work it off. what did he mean..?