B.N.
a nickname you give to someone who is being a bitch nigga...B.N. comes from the initials of bitch nigga
"damn Stephanie why you actin like a dumb ass B.N.?"
B.N.
B.N. means Big Nono. It is used when you want to say no, but saying no isn't enough.
JEFF: Hey Cindy! Will you go to prom with me?
CINDY: That's a B.N.
CINDY: That's a B.N.