Chatter-Box dates way way back to my time in primary school, making shitty stickman comics with my friends. The specific comic its pulled from was a series called Attack of the Creepy Knuckleheads. The Original was About these space monsters called Knuckleheads who devour the entire solar system in the span of 9 days.
I thought it would be cool to turn that physical threat into more a psychological one. A sort of representation of an individuals negative thoughts. Doubts, fears, insecurities, all that stuff. The Chatter-boxes usually loom in the backgorund and you can always hear them snapping their stupid jaws up and down. Chatting it up.