Definitions by yuuy78

Biwinning 

Originating from charlie sheen, it is to be:
A: bi sexual
B: bi polar
C: one who has a situation with two good outcomes

Yeah, he didn't except the fact that he doesn't do well dumping people so he hit his girlfriend BIWINNING

How is that good?

Well he can either not have to dump her she'll break up, or he can hit her ugly ass now.

Biwinning by yuuy78 May 30, 2012