-goes on internet and searches what wowza actually means-

This is what I got:::

Definition: A suprisingly amazing, oh my gosh, out of the ordinary expression.
Example: Wowza! That rainbow seemed to appear out of nowhere, it wasn't even raining!

Hmmm, what does suprisingly amazing mean?
Cause I'm so confuzzled now by the word that came to my head.
Oh and now there's a rainbow!
WHAT?!?
-confusedd-