What's in a name?

I overheard Michael asking Ava the next morning what she named baby kangaroo and her initial answer was "Walmart".   Ava's favorite place in the whole world is Walmart.  Every time we get in the car she proclaims she wants to go to Walmart.  I don't know if she named her animal Walmart because it's her favorite place or if she misunderstood the question and thought she got the animal at Walmart.   The name Baby  "Roo" has stuck and now she asks where Roo is every time.