A male possessing qualities found inherent in both a man and a bro. He knows how to rage and hangout with bros like a fratstar, but also knows how to step up to a challenge, handle his responsibilities, and follows his man-code. The prime catch for girls in their early 20's or college.
Girl A- I was partying last night at this frat and I blacked out while hanging with this frat bro. The next morning I found out he tucked me in, gave me water, and smoked a joint until I awoke to see if I was alright.
Girl B- Wow, what a manbro!
Girl A- Why are you so happy today?
Girl B- This really cute guy held the door open for me and helped carry my stuff up while he was drinking a six-pack.
Girl A- Sounds like a manbro to me.