very rich white school in washington dc area. rivals of potomac, this school has an excellent basketball and golf program, wealthy families, and well dressed/smart students. you can typically find them wearing lacoste, north face, polo and other expensive brands on the weekend, practicing lacrosse or driving around in their bmw's and mercedes. as a previous definition states, flint hill kids are "smart as they are wealthy".
georgetown day guy: "look at those attractive girls in the bmw over there"
flint hill guy: "yeah they go to my school."