You're a what?

I was playing with the kid I nanny. Our game was something like charades, only we just pretended to be something while the other guessed it.

He laid on the floor, puffed out his cheeks, and made a "swimming" motion with his hands.

"Are you a fish?" I asked.

He wasn't a fish, and his seven year old patience was growing thin as I guessed everything he could possibly be. Finaly I asked for a clue.

"Ok," he said "it starts with scooper."

I racked my brain but the only thing I could think of was, "scooper fish?"

"No! I'm a scooper diver!" he yelled, delighted to have finally stumped me.