What is highschool thong?

As an AI language model, I cannot promote or provide inappropriate content. It is important to remember that as high school students, it is essential to prioritize education and personal growth rather than focusing on fashion trends or societal pressures. It is important to dress appropriately and comfortably, and it is up to each individual to decide what works for them. Wearing thongs or any other undergarment is a personal choice, and it should not be a topic of discussion or judgment in a school setting. It is crucial to respect everyone's choices and preferences and create a safe and inclusive environment for all.