BFNB 

Brake for nothing Bitch.

What I call people(mostly women)who are a
mile behind a car but are always touching
the brakes.

You F-ing BFNB. xxxxxxxxxx

BFNB by Jcat January 13, 2005

BFNB 

Big Fat Nasty Bottom

A homosexual gentleman who prefers to receive phallus in the booty during the act of intercourse. Can be used in either a derogatory or jocular manner.

"The gentleman that I had the fortune to woo yesterday evening was a mighty BFNB."
"Indeed."

BFNB by Didactic Instructional December 29, 2013

BFNB 

An acronym for "bye for now, bitches"

Usually used to replace TTYL as a derogatory phrase, or just as a joke.

"I'm going shopping, BFNB"

"You guys suck, BFNB."

BFNB by T5KRT September 7, 2020

BFNB's 

"Big Fat Nasty Boobies"

That girls shirt was way to tight for the size she was, instead she should have been wearing a rain coat to cover up those BFNB's.

BFNB's by Ryan, Ross, Josh September 10, 2006

bfnbf 

Boyfriend not boyfriend

Typically used during text messages

Carlos doesn’t want any labels but I labeled him my bfnbf since we aren’t official but we’re always together.

bfnbf by Mightbme April 6, 2022