Chatterbox is a synonym of yakker.
As nouns the difference between yakker and chatterbox
is that yakker is one who yaks; a chatterbox or motormouth while chatterbox is one who chats or talks to excess.
yakker
English
Noun
(
en noun)
(slang) One who yaks; a chatterbox or motormouth.
(baseball, slang) A slider.
chatterbox
English
Noun
(informal) One who chats or talks to excess.
* '>citation
Synonyms
* babbler, jabberer, chatterer, yakker; see also