The phrase "more high hat" is often used to describe someone who is pretentious or snobbish. There are several synonyms that can be used to convey the same meaning, such as arrogant, haughty, snooty, uppity, conceited, and stuck-up. Each of these words implies a sense of superiority over others, often based on factors such as wealth, education, or social status. Someone who is "more high hat" than others may act aloof or dismissive towards those they perceive as beneath them. Using synonyms like these can help to add variety to your writing, and can convey a more nuanced understanding of a person's character.