[loginereQQ]

I dunno. If a guy from the country goes to the city and tries to speak street he often sounds like a tool as it really doesn't flow well if it is unnatural to you. Exactly the same as when a white boy starts speaking black, he is considered a plonker. Or if a blonde guy grows dreads and so adopts a Jamaican edge to his accent, just an utter cock.

So if a foreigner comes along and tries to speak street he will surely be nothing more than someone for people to laugh at, as it is so much more unnatural, impossible for him to ever get it right as the accent is never going to be there, not for many many years at best. Even when a gringo says he speaks Spanish with a local accent, he doesn't, only in his mind maybe.

If a woman is trying to get her gringo boyfriend to speak hood rat talk then I expect it is because it is what she speaks mostly and finds it amusing, a bit like making a dog speak, the dog doesn't speak it just barks and if you really really try to twist your mind then maybe you can make a word out.

understanding street slang is so much more than words, it is attitude and the posture when delivering it. Gringos may feel they know street slang, but they don't, they know a few words and that is where the similarity to speaking slang ends.

Obviously it is entertaining for some simple folk to teach their kids and foreign partners hood speak which isn't really something to aspire to. I agree it is useful to understand it, especially if you spend a lot of time in Colmados, where most pick it up.
Local slang sounds entertaining to foreigners, just like cockney sounds fun to people that visit London, or Geordie for those who visit Newcastle, but the reality is within society, hood slang is spoken by the dregs of society, same as anywhere.