Now spread cross culturally used to mean anything from "okay", "yes", "no", "really?", "what??", "let's do it", "oh" etc.
May be used as a verbal fullstop. Can be used in most situations depending on intonation.
Will make you sound slightly fobby.
Started becoming used in a widespread manner in Australia from January 2010.
2. "Did you know so and so is going out with so and so?"
3. "Chal let's do it"
Depending on the nature of the conversation with the person you are addressing it can be used for dramatic effect.
The equivalent of using the word Yo
It can also be used to express disgust or disaproval with a person, comment or event
Chal please! (disgust)
Chal! (disgust and dramatic expression)
I talked to her last night chal (addressing a friend or familiar)