Everything has a name

The little lady was playing with her baby doll this morning when Mama asked "What's baby's name"
"Baby", she replied.
"Yeah, but Mama's name is Nikki and Dada's name is Jim.  What's baby's name?"
She looks at Nikki and says "Baby", pausing for a moment before following up with "What's the doors name Mama?"
Hmm.  Well played.  You win