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1.
When one straight bro asks another straight bro to live in the same house, watch sports, and help each other bang chicks. Basically Everything of a gay relationship but no actual gayness. broprosal
"Do you want to be Bros for life?"
"Bro was that a broprosal?"
"Totally bro"
by jakeyb123 September 02, 2014
 
2.
Nickname for the amazing movie "I Love You Man"
Dude have you seen "the broprosal"
by turingMachineH April 20, 2012