"Cor Blimey" is UK-ian, isn't it? Yangus said it all the time in Dragon Quest Whatever. I'm not sure if I ever did Dreadnok speak. I did do Cajun speak ala Gung Ho tho it lost some people cuz the dialect got a bit thick at times. In addition to the cartoons, watch a lot of funky movies. Pirates of the Caribbean might not help but it might give you an idea when playing with different-speak.