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7.
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"
by Michael D Wolf February 07, 2009
 
1.
RBF
Resting Bitch Face

A person, girl especially, whose regular facial expression makes them look like a bitch.
Fuck, major RBF coming your way. I'd tap that.
by supersrs August 18, 2009
 
2.
RBF
Reel Big Fish
band
HSB! RBF rules!
by Cameron May 12, 2004
 
3.
RBF
Really Beautiful Face
Yo Mimi's got that RBF
by mary5297 July 24, 2014
 
4.
RBF
Short for "Redbull Friday". A day in which you drink double your usual Redbull consumption.
It's RBF. Let's mainline it.
by Kipps November 01, 2009
 
5.
RBF
Root Beer Float
Hey man, wanna go to weinerschnitzel and grab an RBF?
by Applesauce Scrotum December 21, 2011
 
6.
RBF
really bad fuck
"That RBF wasn't even worth getting in trouble"
by happilymelancholy February 21, 2010