The phrase “slang for according to” is an informal expression used primarily in casual conversation or online communication to refer to how a term or phrase is understood or used within slang or informal contexts. It often appears in discussions about language, particularly when someone is trying to explain the meaning of a slang term or how a phrase is interpreted among specific groups. However, it is not a standard linguistic term or widely recognized phrase in formal language use. Instead, it functions more as a conversational device to clarify or specify the informal usage of language.