Can I use the f-word?

So Julia was getting her pajamas on the other night, and I noticed that the top that she put on barely went past her belly button. She's sprouted a lot lately and clothes that fit fine just a few short months ago are now too small for her. Sniff... They grow up so fast...

I mentioned this to Julia that it looks like it's too small for her.

She looked down and said, "It looks like I'm a little..."

She looked up at me and asked, "Can I use the f-word?"

Now I'm sure we all have heard of an f-word, but the f-word I'm familiar with would be sooner coming out of George Carlin's mouth than my daughter's mouth. But rather than reaching for conclusions and assuming that she was about to drop the f-bomb, I tested the waters.

"Why?" I asked. "What's the f-word?"

"Fat" she replied.

"Oh! That!" I replied in a 'I knew that. I was just testing you' kind of way.

She said that he's a little fat, but it's 'normal fat' she was quick to point out!