What is Hilarii?
1.
See
When you kicked
spaz in the nuts, it was hilarii!
2.
(Pronounced: Hilari-eye)When something is so humourous or hilarious it has to be changed into the plural form.
Evan:Dude, Paul got attacked by a shark!
Alex:Thats hilarii!!!
Alex:Aliens have landed and they're 50 foot vikings trying to kill us all!
Evan:That isn't hilarii!
See