1 definition by BigLoonadoon
A dating preference in which a man has three options simultaneously. These Consist of one woman that he's been dating for a while, and about to end a relationship with. The second one he's been dating for a shorter time, and everything is going well. The third and final one is just starting out, and beginning to blossom. And Tah Dah! The M.O'Connor triangle.
by BigLoonadoon June 8, 2009