The term "pinup" was coined during World War II when American soldiers would pin pictures, usually drawings and sometimes photos, of beautiful women to their bunks or in their aircraft. However, there is an underground culture of retro-inspired pinup girls that still dress and model like the original pinup pictures.
Old Hollywood glam focuses on enhancing a woman's features and highlighting individuality. Someone that can be described as Timeless or Retro. Having a classy or edgy demeanor they'll remind you of the golden age of Hollywood. Also exuding an elegance without being vain.