Bro movement 

A movement based on the mutual respect of men and manhood and the understanding that it is the responsibility of men to show women a good time and treat them as special guests. Women who endorse the bro movment often understand their role as sexual creatures and take ownership of that status. The bro movement often obtains the hottest girls because of the secret understanding that men have the responsibility to respect women as sexual creatures and also the right to revel in it and women have the right to experience their sexuality. The modern bro movement has evolved to incorporate the addition of women as bros. Women will often times choose to "butch up" more akin to bro status rather than take on a more sexual "candy" role within a group.

Frat's can often be associated with the bro movement.

Bro movement by uwzero December 20, 2012