It can be fun to use big words. When you do, there will be people who don’t fully understand what you’re saying, but usually they can figure out a close-enough meaning based on context clues and perhaps even the sound of the word.
That said, what do you suppose the word hippopotomonstrosesquipedaliophobia means? I’ll provide a link that gives the etymology and definition of it, but first I’d like to hear what you think it might mean. There’s a lot of smart and important readers here, so surely someone can deduce what it means without looking it up.
If you must know the truth, follow this link (and go to the bottom of the page) for a complete explanation.