Hyptopotomi 

Plural of Hyptopotimus, a rare animal found among cabin-fever affected teenagers.

Joe and I went hunting this weekend, we shot us a couple of hyptopotomi

Hyptopotomi by Nicole28 December 30, 2008

hypopotomonstrosesquipedaliophobia 

Most ironic word ever defining the fear of long words

Doctor:Why are you here
Patient: i have hypopotomonstrosesquipedaliophobia *SHAKES IN FEAR*

hypopotomonstrosesquipedaliophobia by NiggerMatt April 14, 2017

hippopotomia 

to become sexually aroused with excessive fat

kev's new partner was so tripleobese he played bouncy castles all night to satisfy his hippopotamia

hippopotomia by theWestHamfan January 23, 2004

hyppopotomonstrosesquipodaliophobia

The single most ironic word you will ever find. It's the fear of long words.

"I used to be a chemistry teacher like you, but then I took a hyppopotomonstrosesquipodaliophobia to the brain."

hyppopotomonstrosesquipodaliophobia by Varthal October 2, 2014

Hipopotomi 

2 or more hippos

Person 1: “wow look at those hipopotomi”
Person 2:”they be swimming”

Hipopotomi by Hipopotomi March 3, 2018