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!"
by Danielle Ducre June 25, 2005
Top Definition
Am Right Back, used after BRB when you return to chat.
User 1: brb
User 2: k
User 1: arb
User 2: wb
by AmRightBack February 04, 2013
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?
by dylan123321 July 13, 2012
African Round Ball aka basketball
Jerome went to play some arb in the projects.
by herpn derpn February 08, 2014
A little man, who is often extremely anal over his business.
It is usually used as a comparison but it can however be used as a term of endearment for a clever person.
You're more anal than ARB...
You're such an ARB
by Charlie Thoms February 27, 2004
Always Riding Bitch. This is a person that always rides bitch in the car no matter how many times he calls shotgun or window.
We call our friend Ian A.R.B. because no matter how many times he calls shotgun, he always rides bitch.
by Josh and Nathan January 11, 2004
An epic typo by Mabinogi NA player "archranger" of the Alexina server. This word was meant to be "Narb" but he failed so epicly it turned out as "Arb" and the term slowly developed into the frequently used word we know today, ARB!
1). Eddward is an ARB at cross dressing.
by Refuserishere July 29, 2011
the act of getting a random boner
A Random Boner
Oh shit I just got a terrible ARB
by Elisa294543 February 09, 2011

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