Wikifaking: using just-in-time Wikipedia look-ups to appear more informed than you actually are in conversation. Feels like there ought to be a programming analogy. Late binding? See also: Planck knowledge vs chauffeur knowledge and chess-postman.
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Come to think of it, I say "if I remember correctly" instead of "I just googled this" to spare them the indignity/shame of being Google-illiterate
If you imitate the original Iron Chef host and slowly intone "Ah, yes, X... If my memory serves me correctly, X is..." it might buy you enough time to get the answer in front of you
