A farrago of nonsense. A confused heap of nonsense. Farrago is properly a mixture of far (meal) with other ingredients for the use of cattle.
“Anquetil was derided ..., for having suffered a farrago of nonsense to be palmed off upon him by his Parsi teachers as the works of the sage Zoroaster.” —Whitney: Oriental Studies (Avesta), chap. vi. p. 184.