Who knows how funny words and cute nicknames evolve, but when you have kids, they just do. Case and point: I met a baby yesterday who is also named Charlotte but goes by "Bon bon." No joke.
Charlie has lots of cutesy nicknames ("Wharley" and "Noodle" to name a few) but the most useful nickname is "Goobles." It is a name we use to describe when Charlie is feeling "goobley."
The pictures below describe Charlie when she's in a "goobley" (aka: silly or cheeky) mood:
What a Gooble Baby!