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1.
aka H.U.A.R. or Humans United Against Robots

It's an organization that was designed to educate and aware the citizenry of the world the impending attack that computers and robots will put into affect against humans.

HUAR is the collection of human beings that spread the word of this opposing doom as well as doing what they can to help minimize the threat.
"Robots will uprise. HUAR will be there."
"HUAR HUAR HUAR!"
by Domorobo February 25, 2006
 
2.
Andrew Dice Clay's pronunciation of "whore".
"Awright hope you had a wonderful time. Bye now....huar..."
-Andrew Dice Clay, The Day The Laughter Died
by Dave March 25, 2004