hippopotomonstrosesquippedalian 

A person who tends to use long words.

Phil is a hippopotomonstrosesquippedalian. I think he just keeps using long words to sound smart.

hippopotomonstrosesquippedalian by KOOOOPOOPPPOOOLLLOOO January 18, 2021

Hippopotomonstrosesquippedalio 

A fear of big words.

I have a fear of big words and there's a name for this fear but I don't want to say it because it's a big word.

Hippopotomonstrosesquippedalio

Hippopotomonstrosesquippedalio by hellorther June 29, 2014

Hippopotomonstrosesquippedaliophobia 

The fear of long words.

Girl 1: Hey remember in Mary Poppins when she sang that song, Supercalifragilisticexpialidocious?

Girl 2: AAAAAHH!!!!!!!!!!!!!! STOP IT!!!!!!!!!

Girl 1: Whoa, what's wrong? Do you have Hippopotomonstrosesquippedaliophobia?

Girl 2: STOP SAYING THOSE WORDS!!!!!!!!!!!!!!!

Hippopotomonstrosesquippedaliophobia by Anya likes spaghetti and bread November 26, 2013

hippopotomonstrosesquippedaliophobia 

It is actually the never ending fear of long words .
If you don't believe me look it up

Alice: So doc' is there anything wrong
Doc: I'm affraid you have hippopotomonstrosesquippedaliophobia
Alice: AAAAAAARGH MAKE IT STOP PLEASE NO AAAAAAAAARG
Doc: they should make an abreviation for this ...

hippopotomonstrosesquippedaliophobia by Rhinostril February 6, 2014

hippopotomonstrosesquipedalianism 

The art of using VERY long words to confuse people. It comes from the root 'sesquipedalian', which means one who uses long words to (again) confuse people. Source: Mrs. Burns Dictionary of Obscure, and Preposterous Words.

Hippopotomonstrosesquipedalianism is the art of utilizing extremely elongated lexicons to give the appearance of being more intelligent to one's acquaintances.

hippopotomonstrosesquipedalianism by Dan Richards February 20, 2008

Hippopotomonstrosesquippedaliophobia 

...a fear of long words

I suffer from HippopotomonYEEEAAAAARRRRGGGGGGGGHHHHHHHHHHH WE'RE ALL GONNA DIE!!!!!!!!!!!!!!!!

Hippopotomonstrosesquippedaliophobia by Al Berry March 1, 2004

hippopotomonstrosesquippedaliophobic 

Fear of big words, quite ironic when you think about it

Mitch is hippopotomonstrosesquippedaliophobic, so words like plutoniumscare him.

hippopotomonstrosesquippedaliophobic by some guy jerkin his wang dang doodle March 4, 2007