At our house we call it an "Owie" when the girls get a scratch or some other small wound.
When Dora the Explorer gets hurt, she calls it a "boo boo."
Aubrey had a little scratch on her elbow and came to show it to me. With her little pouty lips and sad eyes, she held out her elbow and said sadly, "Mom, I have a booby!"
It's hard not to laugh when she's expecting sympathy!