A word used to describing something that’s un-describable. This word can have a double meaning, worst of the worst/best of the best (see example).
by sha-blee-blop March 5, 2008

by wootz2 December 28, 2007

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!"
"Tony always talks to the most arb skos I've ever seen!"
by Danielle Ducre July 9, 2005

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.
by Dimitri Pappas August 17, 2008

by Elisa294543 February 27, 2011

slang for breasts, other times used to refer to women with big breasts or to make fun of a guy with this characteristic.
by Muarbs October 17, 2009

short for Protoss Arbiter from the PC game, StarCraft. The flying vessels provide invisibility to surrounding friendly units. They can stasis units to protect them from any and all damage, and can use recall to teleoprt units anywhere on the map.
by K Pittman September 21, 2005
