actually, i do use but when i get angry or when someone really do something which i dont like.....
i use very local slang language.... which is really odd when any (in india) hear from a girl saying such....
but still thats a way.......!!!
I do use slang when i am with my speech community in which we use that slang.
But when I am out of the community, I will try not to use slang to which the others could not understand.
Yeah, I do often use slang when I am around people who are not intelligent enough to speak correctly at all or even really think about much of anything, but otherwise, I really just talk how I want to talk.