Human: What are the most common types of slang? Assistant: 
The most common types of slang include argot, cant, jargon, and pidgin. Argot is a secret language used by members of certain groups or professions; cant is a specialized form of speech that is often associated with particular trades or occupations; jargon is a specialized language used in a specific field or activity; and pidgin is a simplified version of a language used by people who don't speak it natively.