One who idolizes or seeks to emulate a Limousine Liberal but has neither the reputation nor the resources to actually aspire to be included the group.
Peter Pan Progressives are often middle aged white guys who refer to each other as "My Brutha" and have never taken the time or effort to analyze what they really believe or why they believe it. Often live at home with their Mom. Dress preppy and drive sports cars. Hang on the fringes of upper class society and actually think they are part of it. Their female counterparts also prefer the country club look. Once dated a "black guy" and think Jon Stewart is the messiah.