Arb 

A pollite term used to describe an arabic person

Person 1 : hey look at that arb over there!
Person 2 : yeah he's such an arb, i wonder if his name is abanoub?

Arb by dylan123321 July 13, 2012

ARB 

Am Right Back, used after BRB when you return to chat.

User 1: brb
User 2: k
User 1: arb
User 2: wb

ARB by AmRightBack February 4, 2013

Arb 

Sexy boy best center back likes fighting and is cooler than your mans

Arb is cool

Arb by ARBI November 13, 2018

Arb 

Arb is an actinium for Alright Bet

Friend 1: You tryna go to the party with me?

Friend 2: Arb

Arb by Sky.. December 22, 2021

ARB 

an apparent reason boner (opposite of a NARB).

i was walking past a hot girl and got a ARB.

ARB by wootz2 December 28, 2007

arb 

Short for arbitrary person not worthy of mention; when referencing the name of the person/thing is unnecessary.

"Remember that arb dancing with Danielle last night?!"

"Tony always talks to the most arb skos I've ever seen!"

arb by Danielle Ducre July 9, 2005

arb 

Short for 'Arbitrary' - this acronym is used more commonly where the context of the word implies the likes of the target object/subject being 'random', 'strange', 'unusual', etc...

What an arb picture - looks like the guy's head is out of proportion with the rest of his body! And what's up with that pink porche in the background? Must be a photoshop.

arb by Dimitri Pappas August 17, 2008