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"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
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Bro 1: Hey Bro lets go to the Kid Cudi concert tonight
Bro 2: Dude thats an rbl
by Apollo3313 December 04, 2009
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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.
by Jpac August 09, 2003
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