Antidisestablishmentarianism

antidisestablishmentarianism: person who is against breaking up an establishment.

That was my daughter's counter attack word in the word game with her friend.

Then he came back with, Pneumonoultramicroscopicsilicovolcanoconiosis, a suppose lung disease that supposely is the longest word in the dictionary.

I think they both just like finding words that are sesquipedalian. :)