Someone who tries to act like the a-holes us poor folks had to deal with in the 70s and in my case the 80s. They can be seen wearing leasure suits or wearing something that looks like it's from the old days but really isn't. There usually found in advertisement but have been known to exist off stage.
ashton kutcher from that 70s show, will ferrel, and the McNuggets guy are retro-douche role models.
There's a retro-douche behind everything falsely celebrated.