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2.
to drink beer, or any type of alcohol, on one's roof. A basic combination of the root word brew, which is synonymous with beer, and roof. An incorrect spelling would be broofing.
Come over, we're going to be brewfing at the day party.
by jswingnuts April 23, 2009
 
1.
Combination of 'beer' + 'roof'. The act of sitting on a roof and drinking beer.

Originated in Cal Poly- San Luis Obispo.
We were brewfing it until we finished a 30 pack and someone fell off the roof.
by Rik Malibu April 23, 2009