hillacious 

an area of large moutains or hills.

The land to be surveyed was hillacious.

hillacious by Kevin Burke July 4, 2005

hillacious 

Hillariously Delicious.

Holy crap that joke was hillacious. or wow look at that kids face how hillacious is that

hillacious by icefire2 January 25, 2007

Hilarious and original 

A reply to a post online that is so overused it is no longer funny, hence the intense sarcasm in both words

Post: Ayy lmao
Reply: Hilarious and original

Hilarious and original by Mary Beth Sue April 24, 2016

hallatious 

meaning hilarious in larger standards. Most commonly seen on Jacksfilms videos on youtube.

Jack- "That is ducking g hallatious."

hallatious by 30secondsgone March 11, 2012

Mentally Hilarious 

A 'better' alternative to using the word 'crazy' or 'insane' to someone. Or just a fun way to call someone crazy. Also, 'mentally jolly' can be used. From the Family Guy episode 'The Fat Guy Strangler'.

"Dr, is my brother really insane?"
"Mrs Griffin, we don't use the word 'insane', we prefer the term 'mentally hilarious'"

Mentally Hilarious by scarlett_sweeney September 1, 2009

Hinnacious 

(Hin-ney-shus) Adv./Adj.
1. One who is awesome in every way.
2. An action that is amazing.
3. An object that is swag or cool in every way.

Odd Future Vol. 2 was hinnaciously awesome for is hinnacious beats.

Hinnacious by HighC August 29, 2012

hallucious 

sickening; atrocious, especially anything artistic that's shlock.

From the Yiddish "a chaloshes", literally to faint

I replaced the hallucious plaid wallpaper.

That chutney tastes hallucious.

hallucious by Slumdog January 18, 2009