Introduction: The social media in Nigeria provides an avenue where cultural practices are produced and consumed. One of such practices is joking. Specifically, a genre of jokes found in Nigeria social media space is Akpos jokes. The goal of this chapter is to explore the contextual beliefs in Akpos jokes and the pragmatic strategies employed by the writers of Akpos jokes. Akpos jokes are narratives about an imaginary character named Akpos. The study benefited from contextual belief theory (Odebunmi, 2006) while the data comprised jokes randomly picked from a blog and Facebook pages where Akpos jokes are published. The study revealed that the writer(s) of the Akpos jokes manipulate contextual beliefs like shared knowledge of language and shared knowledge of situations and events in Nigeria in order to generate humour. The writers also employ Implicature and stereotyping of the character of Akpos for humorous effects.