jabber

1. V-I If you say that someone is jabbering, you mean that they are talking very quickly and excitedly, and you cannot understand them. 含糊急促地說話[表不滿]

The girl jabbered incomprehensibly. 這個女孩含糊急促地說著難懂的話。

After a minute or two I left them there jabbering away. 過了一兩分鐘我就走了，留下他們在那里嘰嘰喳喳說著。