to be amazed by something and you can't believe it is real. not to be confused with the question "what." it is an expression of disbelief or amazement. pronounces sort of slowly and with a higher pitch.

When you eat dirt for the first time and leave your family to build a shack in the woods

When you are annoyed

a question to follow flatulence; meant to be exclaimed immediately after an an unusually loud or lengthy fart. To be used especially when someone is in the immediate vicinity who more than likely heard the expellation in question. Exclamation usually ascends in pitch.