It means pamphlet , brochure . It is a type of writing in which people, ideas or institutions are slandered or denigrate. Text in which someone is defamed, slandered or accused.
FREE IT THIRD PERSON from the imperative of the verb LIBAR, suck, extract a nectar. Not to be confused with LIBEL judicial memory that is presented before a magistrate: the accusatory libel was presented today.