"Dat-dat" can refer to any number of things.
- What's that?
- Who's that?
- I want that.
- Give that to me.
- Here's "that". (as he hands it over to you)
The other night in the bathtub I figured it would be a good time to have him point to his different facial features. It was going very well until I asked him where is belly button was. You probably know where this is headed. Every time I would ask him where his belly button was, he would point to his man part and say "dat, dat".
The obsession is just beginning.