hysterilous 

When something is both hysterical and hilarious at the same time, and neither word by itself is sufficient for describing the situation.

Did you just see what Goody did to Kahndo? That was freakin' hysterilous!

hysterilous by Goods October 18, 2008

Hispanicus Hystericus 

A disproportional emotional over-reaction to a crisis (or event) caused by an overstimulation of the limbic system that renders efficient function of the pre-frontal cortex extremely difficult.

Bystander #1: "Excuse me... why are they yelling and screaming like that? Are they OK?"

Bystander #2: "They have Hispanicus Hystericus. They'll be OK as soon as they calm down."

Hispanicus Hystericus by Dr. Carey Perkins April 30, 2022

hysterious

A mix between "hysterical" and "hilarious"
Something that is VERY FUNNY.

"Adam Sandler is so hysterious!"

hysterious by Ninde February 21, 2005

hysterious

Very funny event, humorous

that is hysterious , you are hysterious

hysterious by Dirtyuno October 20, 2006

histerilous 

histerical, really funny other form: histerilizing

omg that joke was histerilous!!

histerilous by Kelsie April 25, 2005