Definitions by Spankithard49

NBF 

Natural Bitch Face. The face of someone who naturally looks pissed off as you see them walking around or performing an idle action. You may think they are having a bad day, but that is just their natural facial expression.

Jenny: Did you see Dilon today? He looked so pissed off for some reason.

Melanie: Naw he's fine he just has a NBF.

NBF by Spankithard49 March 30, 2011