"Douchey" is a slang term used to describe someone or something that is obnoxiously annoying, offensive, or dislikable. It is often used to describe someone who is arrogant, self-promoting, or preppy in an unimaginative and uninteresting way. The term is derived from the word "douchebag," which is a vulgar slang term for an unpleasant or contemptible person. In summary, "douchey" is a derogatory term used to describe someone or something that is unpleasant or annoying.