Pichi is an Afro-Caribbean English Lexifier Creole (AEC) spoken by some 150,000 people on the island of Bioko, Equatorial Guinea. Pichi is an offshoot of Krio (Sierra Leone) and shares many characteristics with its West African sister languages. However, insulation from English and Krio, extensive contact and hybridization with Spanish, language shift involving the Bantu language Bubi, as well as koineization through the prolonged coexistence of Pichi with closely-related languages like Nigerian Pidgin and Cameroonian Pidgin have given the language a character distinct from that of the other English Lexifier creoles of the region. The study of Pichi and its comparison with other West African AECs therefore offers fresh insights into the role that language contact has played in the differentiation of the Afro-Caribbean English lexifier Creoles.