the meaning of 'chill out'

Hallo,

can any one tell me how to use the phrase 'chill out' in difference contexts?

what does it actually mean?

thanks

It means the same as "to hang out".

"want to go chill out at the mall?" is the same as "want to go hang out at the mall?"

It doesn't always mean the same thing as "hang out" often it means "calm down".

An Avril Lavigne's song starts like these:

Chill out, what you're yelling for?
Lay back...

Chill out doesn't mean the same as hang out,
*First of all, it means the same as calm down or cool off.

e.g. "Hey, chill out man, don't be such an asshole.

*ANd it means the same as relax,

e.g.
If you say somebody "want to go chill out at the mall" it'll sound like you're suggesting going to relax , to release tension to the mall, not just to hang out at the mall.

"Chill out" means to calm down or relax. However, often one will hear: "We're just chilling over at so and so's house." In this context, "chilling" means hanging out.

"Chill out" is very often just abbreviated to "chill"; the meaning is exactly as mjd says.

"Leave me alone, please, I want to chill a bit, ok?"

Chill out : something like : "lay back"