Jessica is learning to read and write. This is, in general, a wonderful thing. But now that she's learning to write and spell, she tries to spell everything.
Half of her sentences are like this:
"Mom, can I have some d?" (as in d for dessert)
"Are we going to the j?" (j for gym; close enough)
"Let's read a b." (b for book)
Sometimes it's obvious what word the letter she's saying is meant to represent. Sometimes it's not. It's a little tiring to spend so much time deciphering what she has to say. Just SAY it.