Sick

[Mark Zuckerberg]

1)crazy, cool, insane
2)what one is on a test day

[Tina]

used by chavs to state that somethings is good

[Becky]

Adjective.

1. to feel ill, or not well.
2. A secondary word for awesome.
3. Gross, disgusting.
4. Tired, pissed off.
5. Horny.

[Sonia]

A term used by heroin addicts to discribe the physcial withdrawls the body endures while not using heroin. Heroin withdrawls makes the user sick for around 9 days. The user feels what is similar to a very bad flu which includes extreme body pain, fever, vomiting etc

[PussyCat]

An adjective similar to [cool] referring to something that is either great or completely wrong.

[Sarah]

OLD VERSION OF SICK
Pronunciation: sik
Function: adjective
Etymology: Middle English sek, sik, from Old English sEoc; akin to Old High German sioh sick

Not feeling good.

2 a (1) : affected with disease or ill health : [AILING] (2) : of, relating to, or intended for use in sickness <sick pay> <a sick ward>
NEW VERSION
Now used as the newest word to replace [cool]. Something that youve never seen before.

[Sarah]

something a lot of people are using to describe something in a positive manner.

[Britney]

Can have various meanings,
In the U.S. it is usually used when something is [cool] and [exciting].
In the UK it is used more to describe something not so pleasant, if something is [gruesome] and [disgusting] then its sick.
The act of [vomiting], feeling ill.

[Mark Zuckerberg]

Cool or entertaining to a nausieating degree.