Historic word for ethnic people, who were employed by rich white folk. They would follow around their masters with jam smothered on their faces in order to keep the flies off them while they played golf in hot countries
Oi Jamboy come here! theres a fly!
'Jamboy's' were young coloured boys who were smeared with jam to attract all the bugs and insects away from the rich golfers. If they were successful, they got to keep the pot jam!
And for trivia, it is still possible to hire a jamboy in some countries!
Bloody mosquitos!.. Wheres the hell is my Jamboy?