Dahaneto
Dahaneto is your mouth when you hear something so shocking it makes your eyes pop out of your head.
I heard my dog talked to my mom. I said, 'Dahaneto!' and fell on the floor.
I saw my teacher eat a whole pizza. I said, 'Dahaneto!' and asked for a second slice.
My friend told me I was going to be a king. I said, 'Dahaneto!' and started dancing like a fool.