This afternoon we were playing with a basket full of Kenly's stuffed critters. She has four birds that make noise--a cardinal, a blue bird, a gold finch, and a mallard duck. She loves all of them.
She was digging in the basket looking for something else fun to play with when she sat on the duck.
Me: Kenly, you sat on the duck and made him quack.
Kenly: Yeah, I pushed the button on my hiney.
I nearly died laughing.
Wrong preposition, sweetheart, but I know what you mean.