A person having the qualities of dressing like a prep, but having the personality of a douchebag. Basically, the stereotypical asshole that has a closet full of striped shirts and cargo shorts (or faded jeans). Hair gel and a necklace are optional but popular accessories.
My roommate went shopping at American Eagle today and he's still an asshole. What a Preppy McDouchebag!
by pfizzle603 April 04, 2008