I think one of the most endearing things about any kid is the creative words they make up. My favorite from Jackson is cha-cha boo. It means chocolate milk. I don't know how it came around, but it has stuck.
Jackson has been in speech therapy since he was 2. He's improved remarkably since then, however I don't know if it has to do with the actual therapy or maturity. Once school starts back up, he will be seeing a new therapist, a speech therapy teacher in our school district.
Now that he's in preschool - even being there only one month - his speech is improving on a daily basis. He is becoming so much more clearer and really trying hard to say more words with the correct pronounciation.
But I might try to save cha-cha boo. :)