(1)As a greeting or as a farewell, to be used in general speak as a substitute for a much better, more difficult salutation.
(2) As a substitute for an affirmative response.
(3) As a substitute for virtually any interjection.
(1)Fred: I'll see you tomorrow, Chuck.
Chuck: OK Fred. Hizzoo!
(2)Fred: Are you going to the movies?
Chuck: Hizzoo!
(3) (A) Fred: Jeter just hit a Home
Run. Hizzoo!
(B) Fred: I won! I won! Hizzoo!
(C) Fred: Didn't that movie rock?
Chuck: Hizzoo!
When you fail at something in life (eg. failing an exam or not getting a job), go home and spend an hour just standing in the shower, propping yourself up against the wall with your eyes on your feet.
Caleb knew the only thing to do after he didnt get prefect was take a failureshower.