Meaningless or pretentious talk; nonsense or gibberish designed to confuse or impress.
From 'argle' (to argue) plus 'bargle' (possibly reduplication for emphasis). Created in the 19th century as a playful intensified form, popularized in English literature.
Lewis Carroll's nonsense literature probably helped popularize this word—it has the perfect bouncy, absurd sound that makes you think of meaningless chatter!
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