This article aims to revisit Orwell's use of Squealer, one of the leading pigs in Animal Farm, as a sophist, a linguistic propagandist given that propaganda comprises more than this. In the wake of the Russian Revolution, the author intervenes with the publication of this political allegory as a warning to the world of the dangers of dictatorship and totalitarianism. These regimes ruled and still rule in some parts of the world in a more or less disguised form thanks to people like Squealer, the embodiment of public speakers. Mussolini, Hitler, Franco and the like were themselves at a time dictators and speakers. But this paper tries to show that this heuristic and dialectic role falls today mainly on the press or ministers of communication who falsify truth for the sake of dictatorship. It shows moreover that the voice, body language and Aristotelian appeals are devices and methods to which Squealer has recourse to persuade his listeners. Indeed, to achieve its objective as regards the impact of Squealer's speeches, this analysis draws especially on the formalistic approach thereby resulting in the assessment of Squealer as the pillar of modern dictatorship.