Hippopotomonstrosesquipedaliophobics 

Person with fear of very long words.

Hippopotomonstrosesquipedaliaphobics
Hippopotomonstrosesquipedaliophobics might want to stay away from Friday's presentation of the 2008 Scripps National Spelling Bee, which starts at 8 P.M. on ABC.
-From the San Francisco Chronicle, May 25, 2008. Ironic note: The Chronicle misspelled the word with ...quippe... Spelling spelling corrected in example

Hippopotomonstrosesquipedaliophobics by Gary Lindsay May 26, 2008

hippopotomonstrosesquipedaliophobia 

the fear of long words, which, ironically, is so ridiculously long that even people without hippopotomonstrosesquipedaliophobia may get overwhelmed by it

Pam: so you have hippopotomonstrosesquipedaliophobia
Ellen: SHHH
Pam: *grins*
Ellen: don't you dare
Pam: iiiiiiiiiit's SUPERCALIFRAGILI--
Ellen: *runs away, screaming*

hippopotomonstrosesquipedaliophobia by fanwaffles March 23, 2015

hippopotomonstrosesquipedaliophobia 

The fear of long words (I'm not kidding)

George: Kaleidoscopical

Tom: HOLY FUCK

George: dude whats your problem your acting like you have hippopotomonstrosesquipedaliophobia

Tom: Dude seriously SHUT THE FUCK UP

hippopotomonstrosesquipedaliophobia by spencer hastings November 30, 2013

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

hippopotomonstrosesquipedaliophobia 

A ridiculously long word describing the phobia of one towards long words. Very ironic ah. ha. ha.

Hey Clark: Hey I heard you have hippopotomonstrosesquipedaliophobia

Clark: TOM DON'T ASHDHGSDSFDOIRYUIER!!!! *mumbles random shit being scared out of his underwear*

Tom: Hehehehe, how do you tell the psychiatrist?

Clark: I have hipposdjsdjksdhjjds!!! *mumbles vacuous crap in terror*

hippopotomonstrosesquipedaliophobia by Double Trouble and the dog. March 18, 2012

Hippopotomonstrosesquipedaliophobia 

Hippopotomonstrosesquipedaliophobia: an, innapropriaitely named, fear of long words.

Catherine: You look positively petrified, my good sire. Do you possess hippopotomonstrosesquipedaliophobia, by chance?
Jimmy: Yeah, I have hippopotomonst- FUCK WE'RE ALL GOING TO DIEE!! LOCK THE DOORS!! LOCK THE DOOORRRRS!!

Hippopotomonstrosesquipedaliophobia by JanisTheLunchLady November 5, 2013

Hippopotomonstrosesquipedaliophobia 

The fear of Long words

Jimmy: Antidisestablishmentarianism.
Joe: STOP IT!!!
Jimmy: you have a major case of Hippopotomonstrosesquipedaliophobia

Hippopotomonstrosesquipedaliophobia by nunya bizness! January 4, 2008