1.noisy talk
2.the rapid series of noises made by the parts of a machine
3.the high-pitched continuing noise made by animals (birds or monkeys)
1.click repeatedly or uncontrollably;
Chattering teeth
2.cut unevenly with a chattering tool
3.talk socially without exchanging too much information;
the men were sitting in the cafe and shooting the breeze
4.speak (about unimportant matters) rapidly and incessantly
5.make noise as if chattering away;
The magpies were chattering in the trees