When a bro is easily taken control of by a simple wad of cash, usually for a sexual thing but there are exceptions...
Tim: Bro help me out I didn't study for the biology midterm and you already took it!
Bob: I dont know.....
Tim: waves a wad of 1's
Bob: 1) a, 2) d, 3) c, etc..
Joe: What a Brostitute.