A Prudish Person is someone who is excessively concerned with propriety and decorum, often to the point of being overly conservative or judgmental. A BLUENOSE is a slang term for a person who is excessively moralistic or puritanical, while a PRIG is someone who is excessively prim and proper in their behavior. Both terms are often used to describe someone who is overly strict in their adherence to social conventions.