Boy Terror has a word. Only one, but he is using his word as much as he can. He says "oh-oh". I know, it's not a big word. But it covers a number of situations.
He drops apple chunks off his chair onto the floor. "Oh-oh."
I lean over to pick apple chunks off the floor, and he drops one in my hair. Sees my face. "Oh-oh."
He falls on his ass for the gazillionth time today. "OH-OHHH."
The cat pukes on the floor. "Oh-oh."
While I'm changing his butt, he lets loose a stream of pee, straight up into the air. Watching it sprinkle all over the place, he gazes at me very seriously, and says "oh-oh".