A Suit Douche is a guy who will over dress for any occasion in the hopes of garnishing as much attention for himself as possible.
A Suit Douche will wear an ascot to the coffee shop when meeting freinds just after they have gotten off work at the local factory.
A Suit Douche will wear a brown trimmed Seer Sucker Edwardian Suit to his good freinds wedding when the groom is only wearing a casual vest and slacks.
At all occasions a Suit Douche silently says "Hey Everyone!! Look at me."