ARB 

A Random Boner. Used to call attention to the penis to anyone who knows what ARB means.

Adam: Hey, ARB
Alberto: How big?
Adam: RAGING!!!

ARB by hheihocd September 12, 2018

Arb 

Arb is short form for arbitrary and is used more in the colloquial sense. Implying random or some sort of randomness or non-importance.

Dude, that shirt looks so arb.

Arb by ArbUser May 13, 2020

Arb 

A big bitch who has no life whatsoever and hates themself

"That arb is so annoying."

Arb by Dadddddyyyyyy6969420 May 26, 2020

arb 

Bra backwards, but used if you don't want to say the actual word.

Luke: She's so hot, I just want her to take off her arb
Jake: Her WHAT!?
Luke: Arb, but backwards

arb by fc2078 January 20, 2021

ARB 

"Anime Recommendation Bitch". Someone who has watched so many anime they are used for anime recommendations. All kept around for the occasional good anime recommendation.

Yo ARB give me a recommendation

ARB by RealWords23532 July 13, 2021

ARB 

All Rights Be.

All Rights Be is two things:

1. A way of praising god.
2. A group promoting honesty and love.

For ARB I’ll take your head and BTB.

ARB by Swole Fish June 23, 2022

PB N ARB

When you’ve become too fast, and too furious, just like those movies, but before they were a thing. King of the peanut butter gang

God damn, PB N ARB better say it wicha chest!

PB N ARB by Holla11 November 13, 2020