To talk in a confusing, rambling way; to speak without making sense.
Variant or related form of 'faff,' possibly with influence from 'waffle' (to talk at length without substance). The reduplication pattern suggests playful or imitative coining.
Regional British dialects have dozens of onomatopoetic words for talking nonsense—'faffle,' 'waffle,' 'witter,' 'natter'—showing how English speakers love using sound-mimicking words to express frustration with bad communication.
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