Noun
Chatty Cathy (plural Chatty Cathies)
(informal) A person who talks a lot.
In 1965, the company built on its success with the Chatty Cathy doll to introduce the See 'n Say talking toy which spawned a line of products. citation Hot Wheels was first released to the market in 1968. Source: Internet
Rather than passing, as had been expected, he has been Mr. Chatty Cathy, using every one of his turns at bat so far. Source: Internet