Plural of flubdubbery; multiple instances of nonsensical talk or pretentious behavior.
From 'flubdub' with the suffix '-ery' meaning practice or activity, then pluralized with '-ies'. This creates a word meaning 'acts of speaking nonsense' that became popular in 19th-century American humor.
The fact that someone invented flubdubberies with a full plural form shows how seriously 19th-century writers took mocking pretentious speech. It's the kind of word a Victorian satirist would use to mock pompous politicians.
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