BF 

1. abbr. Battlefield (Video Game)

2. n. Boyfriend

3. n. Best friend

Yeah, I was playing BF3 last night.

BF by JellyDinosaur March 11, 2012

BF 

On a pregnancy chatroom/discussion board, BF is shorthand for BREAST FEEDING

hey all you Bf-ing moms out there: is it okay if I drink coffee?

BF by WinnieNY February 20, 2007

bf 

boyfriend. gf is girlfriend, and BF is best friend, because your best friend should always come before your significant other, regardless to your commitment level.

person 1: "what did you do this weekend?"

person 2: "oh, I went out with the bf."

bf by miriam February 18, 2004

BF 

Business for myself

She's been so involving with my bf lately

BF by Youijl March 8, 2017

BF 

A Bf means a best friend

I love my bf

BF by Deathman1001 December 15, 2017

BF 

B**** Fit. Like in the movie White Chicks.

Oh my god, if you don't buy me those jeans, I'm going to have a BF.

BF by LetsHaveAParty June 13, 2005

bf 

Butt Fuck

John and Jim had a nice butt fuck.

bf by not john or jim September 12, 2003