people who act very preppy, and dress very preppy, they might wear clothing brands like hollister or abercrombie and fitch, and say words such as: like, oh my god, and whatever a lot.
That girl with the A+F shirt is mad prep.
refers to people, mainly popular girls, who are basically fake, as in they try to dress and look and act like something they arnt or their face is covered with makeup and their hair is all colored, which makes them look unnatural and fake.
That girl is mad fake.
could mean anything, its just a common name to call people by.
Dude, your such a nukzor.