What is a square person?

There is no specific definition of a "square person," as the term is often used colloquially to describe someone who is perceived as conventional, boring, or lacking in originality. It is typically used as a light-hearted insult to suggest that a person is unadventurous, mainstream, or overly concerned with following rules or societal norms. This stereotype is often associated with individuals who are seen as being overly conservative or resistant to change. However, it is important to note that such labels are subjective and can be hurtful, so it is important to treat others with kindness and respect regardless of how they may be perceived.