to babble, to blather
Ununterbrochen, oft unsinniges oder belangloses Zeug reden.
To talk incessantly, often about nonsense.
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Hör auf, so viel Unsinn zu quasen!— Stop babbling such nonsense!
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Der alte Mann quast den ganzen Nachmittag nur Unsinn.— The old man just babbled nonsense all afternoon.