RBF 

Really Beautiful Face

Yo Mimi's got that RBF

RBF by mary5297 July 24, 2014

RBF 

really bad fuck

"That RBF wasn't even worth getting in trouble"

RBF by happilymelancholy March 15, 2010

RBF 

Royal Butt Fucker.
Someone who is a butt fucker but is so much worse at life than an ordinary butt fucker so he is than named it royally

"Holy crap your bein such a RBF right now"

RBF by Michael D Wolf February 7, 2009

RBF 

This is the abbreviation for "Really Bout to Fight." This is commonly used in and around the Jersey shore in New Jersey.

Wow... they're about to RBF right now!

RBF by Smiley 777 May 26, 2016

Rbf 

Abbreviation for rabbid baseball fan

Have u heard of the rbf who hit his tv with a bat?

Rbf by Ululu March 20, 2017

RBF 

This is the abbreviation for "Really Bout to Fight."

Wow... they're RBF right now!

RBF by Smiley 777 May 26, 2016

RBF 

Runner behind Fred

Wow! Who’s that RBF? They are catching up to him!

RBF by Pantyripper69 March 27, 2022