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1.
A very epic way to say "yes" or "yeah" :D
hey man, wanna go play call of duty?

YARB!
by Sarkli11 December 18, 2010
 
2.
One who kills without mercy, or acts malevolently on a daily basis.
The serial killer was a total yarbs.
by mryarbs June 05, 2010
 
3.
It's when a middle aged woman named Barb yells at you for not not living a healthy life and/or being stupid. She will often have the look of death in her eyes, so it is advised not to make eye contact. Do not try to argue your way out because your attempt is futile. The best way to handle a yarb is to bring your head close to your chest, and every so often say "Yes". She has no weakness, so may God have mercy on your soul.
This woman is going to yarb me for making racist jokes
by JDubbs11 May 26, 2011
 
4.
YARB

The act of turning a nasty sentence back to the person it's coming from, or to turn a normal joke on a person. Commonly used with the word beat which means to have sex, or fuck.
Brian: Hey Hayden, you remember Mrs. Hamilton.
Hayden: Yarb.
Brian: Fuck you.

Trey: Brandon, you beat that fat black grizzly woman
Brandon: Yarb!
Trey: shit.
by DaphneTrojanMan February 17, 2010