What's in a Name?

My three and half year old is trying to remember her baby brother's name with only minimal success. In her defense she told us for months, she did not like the name we chose and wanted to name him Licky.

For the past few days, I find it quite humorous when she asks, "what's his name"?  But this morning was the tops.  He was laying on my bed, as we got ready, and she turns to him and asks, "Who that?" I said his name with a question.  She answered "yes". I asked if she had forgotten his name.  Once again the response was "yes".  Ha ha, I wanted to laugh at her three year old-ness but yet, I just smiled at her, I'm totally ok with her asking what his name is until she can remember.  I'm pleased she is not calling him Licky.  She might also be confused because she only hears her daddy call him Turbo.