Ill 

Slang. An expression meaning cool, and often dangerous.

-That shit is ill man.
- That 900 you pulled was ill man.

Ill by Zack Schomp November 19, 2003

ill 

really good, the BEST

the illest rappers

ill by The Real Gansta May 4, 2003

ill 

to be tight, sick or cool. most likely used by northerners ghetto suburban people

yooo kid, i got this ride, is ill

ill by MatadoR November 19, 2003

Ill 

your a person who's name is Lilly but did the take away the first and last letter of your name

I'm ill

Ill by litllecookies June 25, 2021

ill 

Cool, awesome, amazing, hot, the best

Doesn't Erin have ill arms?
Yeah! They are so ill!

ill by maraschino September 13, 2005

ill 

Dope, fat, the bomb, the best.
Short for illicit
See also: sick

You see Iverson? Boy is so ill he makes medicine cough!

ill by Mo Hizzle December 27, 2003

ILL 

Acronym - I Love Life

This is the counter to the infamous FML (fuck my life) for positive people who love & appreciate life.

"it's an ILL kinda day"

"feeling pretty ILL today"

"dude, that was an ILL moment!!!"

"how ya doing?..... ILL"

ILL by BBB - Triple B September 19, 2013