Name calling

Lolo has started name-calling recently (brought home from preschool, I'm sure). Her big thing has been calling everyone "silly"...which I guess isn't technically that bad...I'd just like to keep it from escalating to something I really don't want to hear. In any event, we've been harping on how name-calling is naughty and how we don't do it in our house.
Last night, I'm trying to get the girls upstairs to get in the bath. I've run the bath and I say to the girls..."Girls, there's a bath calling your name!" Lolo looks at me horrified..."Mama! There is no name calling in this house!" LOL!