A word to show Happiness/joy/celebration in Sim language, usually accompanied by waving your arms above your head.
Person 1: Hey man, I just got us some KFC!
Person 2: Fabonaah!
Person 1: What?
Person 2: It means Rewenge
Person 1: ...
Person 2: Fabonaah!
Person 1: What?
Person 2: It means Rewenge
Person 1: ...
by Notrub little beard January 15, 2010
Get the Fabonaahmug.