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1 definition by Branston Winstonwirth

 
1.
The act of multiple males hanging out or chillin' in one's basement and/or man cave. Short for the words bro (brother) and sesh (session) or bro sesh.
Jeff- Dude what's going on tonight?
Drewski- I think we're broshing in David's crib.
Jeff- Sweet bro, i love broshes.
by Branston Winstonwirth August 29, 2009