Pronounced "Nill-lick"! Another word for sweet, cool, great, excellent, or awesome. Also, the process of being the best you you can possibly be. Also another meaning for being and staying "fly".
Yo man, stay NILLIHC!
Dude, that's Nillihc to the max!
Not much bro, staying nillihc!
I put the v in vicious, I put the pow in power and as always, I STAY NILLIHC!!!