tough language

English is the most common languages in the world. everyone is going to learn english and speaking. actually, people who live in the difference territory in the world thus they have difference accent. also they have own lifestyle and customs so that created new languages such as tough language. i do not think this kind of language is composed of dirty words. it is just depend on people's habits and man who speak tough language. for some reason, everyone could prefer to speak tough language, this is the effective way to express deeply emotion.