fedorawhora
Someone who wears a fedora hat with almost any outfit (whether it goes with it or not), wears a fedora almost every day, and has a large wardrobe of fedora hats in different colors and trims; someone who basically just loves fedoras.
Frank Sinatra might have been the original celebrity to do it, but Johnny Depp, Brad Pitt and Jake Gyllenhaal are modern-day fedorawhoras, wearing fedora hats almost every day.