A Barney-Be is someone who acts and/or says things that l Neil Patrick Harris' charactor, off of How I Met Your Mother, Barney Stinson would say, or does say. So basically it's a Barney Wanna Be.
person 1: See the guys in those suits, who yelled at us to "suit up"? They have a name!
person 2: what?
Person 1: They are Barney-Be's!
person 2: what?
Person 1: They are Barney-Be's!
by seacucumberlover January 25, 2010