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::

by DaniKidd December 4, 2007

RBS

RardiBullShit
used when the amount of bullshit said by a person reaches an absurd level.

Sam:<NEXTLEVELBULLSHIT>
Ravi:Whoa thats some rbs right there

by ShaibFromSarangkot October 4, 2016

RB

myRedBook (RB) adult entertainment community

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

by RB Fan May 27, 2008

rb

reply back

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

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.

by sdlakers March 12, 2010

RB

roast beef short for roast beef dangles. nasty dangly female genitalia.

Broski I got that chick back to my place but she had nasty RB, I couldn't beat.

by corbet December 28, 2007

rbs

Raging Butt Sex

Hey, I'm coming over for some crazy RBS.

by Cameron May 27, 2004