What's with the slang mister ???!!!

Or should it be miss ? should be for both I say ……….. it just really gets to my nerves when someone suddenly starts speaking with a heavy foreign accent despite being a typical local clown ! Does not mean that living in the US ( or UK for that matter ) for barely a year and all of a sudden you forget your original slang and return home with some foreign lingo ????!!!! So , what do you do with someone who tends to act big way too often , behaves like as if he or she has all the influential ‘ contacts ‘ by the way he / she talks , knows who and who and only to discover later on that this person is just a empty vessel ? You studied in an all malay medium school , all subjects were taught in Malay , your circle of friends spoke in Malay and now all of a sudden you start speaking like an American ??? What’s wrong with this kind of people ? If you want to speak like an American , eat like the Americans , live like an American – then why don’t your just buzz off to America ? Don’t brag about it always because bragging , only makes people to hate you more !