Square Ones is a term used to describe people who are not very socially adept or knowledgeable. It is often used to describe someone who is considered a 'NERD' or 'DODO'. The term is derived from the crossword solutions NERDS (5 letters) and DODOES (6 letters). NERDS refers to someone who is highly intelligent but lacking in social skills, while DODOES refers to someone who is out of touch with modern trends and culture.