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18.
Ill
Slang. An expression meaning cool, and often dangerous.
-That shit is ill man.
- That 900 you pulled was ill man.
by Zack Schomp November 19, 2003
 
1.
ill
cool, tight, sweet
that trick was ill
by matt prigorac April 14, 2003
 
2.
Ill
1. Adj. Feeling under the weather, as with a cold or the flu.
2. Adj. Having great skill or skills with respect to a particular endeavor.
3. Adj. Being particularly depraved, usually with respect to one's selfish pursuits or the manner in which one treats others.
4. v. A more fashionable version of the verb "to chill," i.e., to relax, lounge, to hang out.
1. I'm feeling ill today.
2. "Damn, I'm ill at this game!"
3. "Yeah, so Raekwon tried to steal his chef's hat, and he straight murdered that kid with a soup ladel. He's pretty ill like that."
4. "I'm going to ill out at my house tonight," or "What did we do last night? Oh, we illed out at your mom's place."
by TheTripleBizzle November 28, 2004
 
3.
ill
1. means Dope, cool, tight, raw, phat, etc.....

2. To be sick
1. Yo that Beat was so ill

2. Those 2 boys there are ill with the flu
by AC December 23, 2003
 
4.
ill
OFF DA' HOOK.




Urban Dictionary
"Dat ride iz ILL"
by Da Shizzle December 23, 2003
 
5.
ill
amazing; totally awesome; the best
That new 15" subwoofer is ill!
by Anonymous June 07, 2003
 
6.
Pills or tablets
Blue ills are ten, Red ills are twenty, the green ills...you can't have those..those are for me
by Conrad June 19, 2003
 
7.
ill
its like saying sweet, cool or sick
oh my god man that car is so ill!!!
by metzner December 17, 2007