Someone who has the looks/features to be hot but isn't "noticed" yet.

A home-schooled jungle freak who is actually a hottie but won't accept it and pretends they are not when everyone else knows they are a hottie. No matter how many times you tell them they are a hottie or how many times they get hit on, they will not believe it.

Used in the movie "Mean Girls" meaning a high school girl who everyone would "hot".