RBC 

RBC stands for Rich Bitch Club. Its a group of girls that are rich and really snotty and think they are better then everyone.

Bill: Did you hear that RBC is increasingly getting more popular?
Rick: no.
Bill: Yeah they almost took over the whole town of Trophy Club, Texas.

RBC by SexyKid22 June 19, 2011

rbt 

Random Breath Test
Tests police use to check the blood alcohol percentage of random drivers. Uses a breathalyser device.

"Sorry mate, ill be running late, had an rbt."

rbt by bajibbles August 24, 2006

rbx.place 

A site for 7 year old kids to steal their parents credit cards to buy pixelated hats

Kid did you buy on rbx.place you noob

rbx.place by You Can’t Handle Me March 4, 2018

RBI 

Really Bad Image.

This is what happens after TMI. Additionally, when you see something really horrible.

Tim: I just saw a dude eat a booger.
Tony: RBI, man.

RBI by Evogq August 24, 2010

[Rboks] 

A person who will not leave a forum alone, constantly annoying the forum. A loner. Someone who is not liked, someone who thinks they can hack when they really can't.

Like if someone won't leave a forum & is harrasing others, etc, you call them a rboks

[Rboks] by w4nt3d January 7, 2009

RBG 

Ruth Bader Ginsburg, justice of the Supreme Court of the US.

Hey, isn't RBG an amazing woman?

RBG by sparveriuss February 10, 2015

RBR 

When someone meant brb(be right back) but accidentally wrote rbr.

Faye: RBR
Julia: what??
Julia: Faye??
Julia: Faye!!!!
Faye: back
Faye: oh..i meant brb
Julia: oh..

RBR by ChewiKirbyLava June 30, 2011