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)

Rbl by legitimacy155 May 17, 2010

RBL 

raquette breads lesbians

raquette before lapidus

the all girls socials define RBL.

RBL by raquette1111 December 23, 2009

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

rbl by Apollo3313 December 4, 2009

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.

RBL by AsheeBizzle January 17, 2011

RBL Posse 

San Francisco rap pioneers. Coming out of San Francisco's Hunter's point, bayview district, the RBL Posse original duo is made up of Mr.Cee(R.I.P), Black C, and followed up by Hitman(R.I.P), who latered joined the group. Inspired other rap groups from the bayview like the cold world hustlers, and 11/5.

"Chris(Black C) got me up about 11 o'clock, he said "we gotta go to harbor to sell of our rocks, aint got time to play captain save a hoe just give up the number so we can g.o."-RBL Posse, Remind Me

RBL Posse by KILLAHOENIGGA415 January 17, 2009

RBL's 

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

RBL's by Jpac August 9, 2003

Triple rbl's 

It is a triple threat pussy that is dripping wet with a rotten odor and has the long discusting flappy curtains.
Translation Runny, Rotten, Roast beef lips

Bro, that dirty skank had Triple Rbl's I didn't know what to do so I just pulled up my pants and ran for the door.

Triple rbl's by Matt Gilbert April 27, 2007