Antidisestablishmentarianism
It seemed silly that they gave him that word. It's not that hard of a word to spell. And a lot of people have heard that it's the longest word. "Floccinaucinihilipilification" was a much more difficult word.
... And it actually looks like it's longer than "Antidisestablishmentarianism" (29 letters vs 28 letters). Have I been lied to about the longest word? I don't know who to trust anymore!