A Man-woman concert is a form of concert without formal regulation or legislation on the purchase of tickets. Usually have less safety guidelines and precautions.
From the old Our Gang show where the little boys hated the little girls and would not allow them into the club. A modern day version is any group of men who love to hate and hate to love the females. HMWH are not gay, just can't stand the BS that females offer. Another example is Al Bundy's NO MA'AM Club.