look up any word, like pussy:
 
3.
rbl
R=Real
B=Bad
L=Look
Bro 1: Hey Bro lets go to the Kid Cudi concert tonight
Bro 2: Dude thats an rbl
by Apollo3313 December 04, 2009
 
1.
Rbl
"Random but legit" - first originated with an infamous Facebook album infamously named: "Random but legit sexiness." The atrocity of this album is so hilarious, that the beginning of the album title has been used by many across the tri-state area. *Note: the origin of the album is New York City.
"HAHAHAHA rbl prostitute" (said in regards to a girl that is dressed like a slut while hooking up with someone)

"rbl mom" (said in regards to a girl that resembles or acts like a mom)
by legitimacy155 May 16, 2010
 
2.
RBL
raquette breads lesbians

raquette before lapidus
the all girls socials define RBL.
by raquette1111 December 23, 2009
 
4.
Roast Beef Lips. 1)Any chick whose labia(lips) either have a purple-brown tint to them, or hang more than two inches from their clit.
see also Meat Curtains.
2) Any-person who claims they don't know what I'm talking about is a RBL.
Avril Levine, Jenna Jameson, Carot-top
by Jpac August 09, 2003
 
5.
RBL
Random Burst(s) of Laughter
I was still having RBL over the joke he told a hour ago.

When I get sleepy I have RBL for no reason.
by AsheeBizzle January 16, 2011