What is sadity?

"Sadity" is a colloquial term often used in African American Vernacular English (AAVE) to describe someone who is perceived as being snobbish, stuck-up, or acting more superior than others. It can imply that a person is behaving in a pretentious or conceited manner, often trying to portray themselves as being of a higher social class or having better taste or manners than those around them. This term is generally used in a pejorative sense and can be directed towards individuals who are perceived to be overly concerned with appearances or social status.