(~s, ~ing, ~ed)
If someone is ~ing on about something, they are talking for a long time about something that you consider boring or unimportant.
The old men ~ on and on...
Stop ~ing...
He kept on ~ing about police incompetence.
VERB: V on , V, V about n
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Blather is also a noun.
Anyone knows that all this is ~.
N-UNCOUNT