rb 

reply back not random boner

.......rb

rb by ninjamoolola July 16, 2019

rb 

real bad
mostly used when you miss somebody

"i miss my man rb"
"im on this girl rb"

rb by therealmylove June 6, 2023

rb 

Random Boner

Jim tried to hide his RB by crossing his legs.

rb by Anonymous October 28, 2003

rb 

a rogue boner you receive at unexpected times

a surprise in your pants!

Dani: Josh you've got a huge rb!
Josh: Thanks for announcing it to the world! ::winks::

rb by DaniKidd December 4, 2007

RB 

myRedBook (RB) adult entertainment community

I found this hottie from RB who blew my socks off!

RB by RB Fan May 27, 2008

rb 

reply back

eg. on Snapchat YOLO ‘rb if ya not scared’

rb by lil TAZZz December 3, 2019

RB 

Short for Rat Bastard. Something you would call someone for pulling a shaddy or lame manuever. For example, taking credit for you work at your job.

You are such an RB, I can't believe you ate my last bagel.

RB by sdlakers March 12, 2010