Mr Mandela is often referred to as âKhuluâ, which means great, paramount, grand. The speaker means âGreat Oneâ when referring to Mr Mandela in this way. It is also a shortened form of the isiXhosa word âTat'omkhuluâ for âgrandfatherâ.
I assume 'Pico' is a name. Boku refers to oneself (like 'watashi', 'ore', 'washi', etc.) like 'I' and 'no' indicates possession (for example, 'boku no inu' would be 'my dog' or 'dog of mine' (in reverse order since dog appears at the end in the Japanese sentence) since 'inu' is dog in Japanese).
Boko means inauthentic or fake, says Mohammed Kabir of the BBC's Hausa Service. It does not literally mean education. The word's evolution is bound up with colonialism. In 1903 the Sokoto caliphate, which ruled parts of what is now northern Nigeria, Niger and southern Cameroon, fell under British control.