Define Chubby Wubby Tub Tub Meaning

Chubby Wubby Tub Tub
A way for smart people to insult a fat person in a way that the fat person may find cute, or funny.

Come Here you chubbby wubby tub tub!

Hey chubby wubby tub tub, what do you got for lunch, a human child or what?
By Alisa