A non-black friend of mine posted as their Instagram caption, “Excuse the nappy hair” indicating that their hair was messy.
Except that “nappy” isn’t an adjective meant to mean “messy”, it’s an adjective used to describe a texture of hair, particularly tightly coiled Afro-textured hair.
I’m not trying to call anyone out, I just want to inform you that saying your hair is nappy, when it’s messy, is associating a negative image with those of us who have naturally nappy textured hair. The same goes when your hair is poofy or untamed and you say you have an “afro”. Phrasing like that lends a negative connotation to those of us who grow that kind of hair naturally, and can negatively alter the perception of black people by society.