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1.
A derogatorive term for people that have a strange fetish for anorexic people.
Olsen fans are all aviz bastards!
by H00chymama January 08, 2008
 
2.
Greenish Olive colored piece of warm poop, sometimes containing small chunks of food that where not efficiently broken down during the digestion process.
Wow! Someone forgot to flush their Aviz down. Yuck!
by Bobby Joe Brown Brown December 21, 2007