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1.
A sound of rejoice uttered frequently by Mr. Burns from the Simpson when something goes his way.
Homer and Mr. Burns dig themselves out of the snow after an avalanche. Mr. Burns yells "hazzaa" while Homer screams his classic "woohoo". Their yells cause another avalanche.
by Kevin Corrales August 23, 2006
 
2.
Being in the state of being happy or really high yeah that means you too Dane.
Dane Mullen was hazaa.
by Rowl Buttcheek April 22, 2005
 
3.
a term used by homos to express great happiness
adrian yelled hazzaa when he did well on a test what a fagnard
by My Biznat Is The Shiznat January 12, 2003