histerilous 

histerical, really funny other form: histerilizing

omg that joke was histerilous!!

histerilous by Kelsie April 25, 2005

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

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