A way of saying "Butt Fuck Nowhere" that usually sparks someone to say "What's BFN?" which forces you to say "Butt Fuck Nowhere".
Girl 1: Wow, where are we? We should have asked for directions cause now were in BFN.
Girl 2: BFN? Whats that mean?
Girl 1: Butt Fuck Nowhere, don't you know anything?