Aesopian language is communications that convey an innocent meaning to outsiders but hold a concealed meaning to informed members of a conspiracy or underground movement. For instance, if Person X is known for exposing secrets in an organization, the organization leaders announce that "any members who have dirty talking habits will be dealt with" to warn Person X. It refers to the ancient Greek fabulist Aesop. According to one critic, "Censorship... had a positive, formative impact upon the Aesopian writers' style by obliging them to sharpen their thoughts."