If you maunder, you talk for a long time in a loose, dull way — often complaining — without really arriving at a point. The talk wanders, and listeners get tired waiting for it to land. The word lives more in books and careful writing than in everyday speech; in ordinary talk people usually say go on and on, ramble, or complain. You maunder on about a job, the neighbours, the government. It is not a rude word, but it is not a kind one either: it says the speaker is wasting time. Though actually, the same verb can also mean to walk about with no clear aim, as if your feet were doing what your voice does when you maunder. Both pictures share that slow, unfocused movement.

碎碎念、絮絮叨叨（說了又說，常帶點抱怨）