Top Definition
When multiple gatherings occur on roofs connected to and across the street from each other. Most prominent in areas like Bushwick, Brooklyn during the summer.
I hope the neighbors on the 4th floor aren't upset that we're having a roofblock party tonight, I think 4 buildings on Jefferson Street are hosting.
#block party #roof party #stargazing #drinking #4th of july
by katiekkatiek July 11, 2012
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