rb 

They were lying. It means random boner.

“When I was at my family dinner i got an rb”
“Was your aunt Becky there?”
“Yeah.”
“Then it wasn’t random.”

rb by anonymous January 15, 2021

RBCS 

The supposedly "racist" school because it's based on lottery system. All of money and fundraising goes towards a non-existent gym that will never exist. Acts like Red Bank Middle School is somehow on the same level, but we all know it's way worse.

"What school do you go to?"
"RBCS"
"Oh I'm sorry for your loss"

RBCS by you know who. take a guess. March 9, 2021

RBNR 

Really But Not Really

When I'm out all I think about is balling every good looking woman I see. Then I'll get to talking with them and reality sets in and I'm like RBNR

RBNR by Mr Special March 17, 2021

RBAD 

Technology definition

When roles and permissions go wrong.

"dude, my tenant admin has gone RBAD" - also see "titsup"

RBAD by lazlo24 April 23, 2021

RBXEventLeaks 

The best, most credible roblox leaks account on twitter, go follow @RBXEventLeaks because he is a very, very handsome man and gets all the girls, he’s even related to dababy

He is a very hot, trustworthy, nice, funny, fun, man to hang out with, if he likes you, you are very lucky

Justin: who’s RBXEventLeaks?

Jack: he is a very hot, trustworthy, nicer funny, fun, man to hang out with

RBXEventLeaks by RBXEventLeaks April 27, 2021

rbxl 

rbxl means roblox studio files

Han: What is rbxl?
Me: Roblox Studio File

rbxl by Hyebun1 April 30, 2021

RB 

See Rebecca Black

"RB Rebecca Black"

RB by UltimateDoge May 2, 2021