chatterbox

/ˈtʃæ.tə(ɹ)ˌbɒks/noun
Middle SchoolNot in standard dictionaries
1

One who chats or talks to excess.

2

Synonym of cootie catcher (“children's fortune-telling device”).

3

Synonym of chatterbot.

4

The orchid Epipactis gigantea.

#informal