500+ American Slang | Spoken English Vocabulary Course is an English speaking skills training course in which you will learn slang English to communicate with people. In this course you will learn 500 English slang terms, terms that are needed to understand real conversations. Instructor Warning: Note that this course is informal and slang for teaching English and sometimes contains words that are not suitable for children to learn. This course is suitable for people who want to speak English fluently, want to learn advanced vocabulary, understand slang English and do not want to be confused in English conversations.