RBI 

Random Boner Incident.

Andy- "So, I talked to Sadie yesterday in math class."
Brad- "Did she give you a RBI? That girl is smoking hot!"

RBI by HOG2331 September 8, 2010

RBR 

Reverse Buyers Remorse - when you found something you liked, second guessed yourself and didn't buy it, then regretted it later. Regret not buying something

I'm totally having RBR; that cute pink dress is sold out now.

RBR by shoegal yo May 21, 2010

Rich Bitch Club, rbc 

Clothing Line Owned By Steven C. Nguyen, world renowned website producer and celebrity who was done work for video game companies and television shows.

The RBC is a clothing line that Steven C. Nguyen is working on

Rich Bitch Club, rbc by Steely Phil September 29, 2004

RB7

A group of young innocent men located in Coventry England

"Oh look its that group RB7"-

RB7 by RRRRRR111SSFHSHASFHASFHAS,AFMH July 2, 2018

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

RBD 

Random Boner Dissease- a common occurence in males, especially afro-american men, to get an erection for almost no reason at all just because you're a man.

I was trying to study for a test when I was stricken with RBD

RBD by lawmenship May 26, 2011

RBRT

Really Big Ryan Taylor

oh shit is the the fucking RBRT over there?

RBRT by Jeff and Ryan AKA turbo man November 28, 2004