I don't for a moment pretend that I understand youth slang - and probably haven't for the past 25 years.  But none-the-less it excites me.  I find it fascinating how language evolves, changes and adapts. 

But slang is not just the preserve of the kids.  Every industry and profession has its own language.  That is fine, but knowing when and where to use it is important.  

It is all too easy to lose your audience by using a language they don't understand. 

And worse, trying to use a language without understanding it properly. Your bruv will think you a  durkboi!