RJB 

Someone who brags about stupid things & posts socially inappropriate status updates on social media.

Fuckwit: Im RJ Bitch!! Look at my Facebook status! Like it baby! Enjoy yourself!

ME: Code RJB. You're a fucking loser.

RJB by DC.187 February 9, 2017

RJB 

an abbreviation which is used when you have a friend called RJ.
The B can really be anything as the need arises
RJ blocking someone on facebook it can be RJ Blocks
RJ being with his family for their bonding it can be RJ Bonding
RJ being a good boyfriend for his girlfriend it can be RJ Boyfriend
Rj choosing blacken the mood of his friend it can be RJ Blacks

Friend 1: Did you hear that our friend RJ , Blocked 4 shots during yesterdays conflicts of law basketball tournament?
Friend 2: Oh man RJB , RJ Blocks !! He really is the best ever (TBE)
Friend 1: RJB is my TBE

RJB by DugLoverChasy January 29, 2023

/r/jb 

a place where Tweak Developers publish their work, and where they get harassed most of the time.

"a really talented developer just left the jailbreak scene."
"yeah, apparently it was because of /r/jb, again."

/r/jb by a7ay kshmat July 7, 2021

Rjb4467 

Dude if you ever meet her. I swear to god I love my whole heart to this girl. She’s beautiful, sweet, kind, smart, loving etc. I swear I never stop smiling when I meet her

Damn is that rjb4467, she so pretty

Rjb4467 by Your moms shoe July 12, 2021