What is Juanita slang for?

Could you possibly elaborate on the origins and meaning behind the slang term "Juanita"? Is it a regional term with a specific cultural significance, or is it more widely recognized across different communities? I'm curious to understand the context in which this term is typically used and what emotions or connotations it carries. Additionally, are there any other slang terms that are commonly associated with or used interchangeably with "Juanita"?