Top Definition
A public school in Philadelphia known to be in the top 100 schools in the country. #1 school in the state. Obviously, it is a magnet school but despite this it has very low funds from the city. There is so much competition for enterance that kids who get 95% on their entrance exams are put on the waiting list and often denied admission. Kids there are allowed to graduate in 11th grade (they don't get a graduation but they do get a diploma if they want it in 11th).
You go to J.R. Masterman? Wow.
by Hi __ June 11, 2009
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