The undercover love interest of a woman who is engaging another man outside her marriage or relationship. To her husband, this extra guy is a friend (play brother), when the truth is she and this "play brother" may have been intimate in the past, but the relationship did not work out.
He's just my play brother - there is nothing up between him and I.
by D.E.L. December 28, 2011
Can you define these popular missing words?