Wanderlust World Wanderlust World In Nigerian Pidgin, "oga" (pronounced oh-gah) is a versatile term of respect used to address someone older, of higher rank, or in a position of authority—similar to "sir," "boss," or "chief." It can also be used affectionately among friends or family to show closeness and deference. The word likely derives from the Yoruba ọga (master/lord) and is ubiquitous in everyday Nigerian speech.