Who's "Extra Little"?

I guess I should explain.

When Kiddle was an infant, I usually referred to him as Little Kid (much to Mr. P's annoyance because he thought it sounded like I didn't know Kiddle's name — until he started calling him Little Kid, too). Eventually Little Kid was shortened to just Little, which later evolved into Kiddle. We don't use those nicknames much anymore, but at one point we did become a bit concerned he might be Little for the rest of his life. I mean, who wants to be known as Little at 40?

Anyway, I've been struggling with what I should call this new kid in my musings here. And Extra Little seems fitting since he'll be my second, extra kiddo. So Extra Little it is ... at least until he shows up and something else seems to fit better.