sambo
noun
1
a black person. Originally neutral, gradually accepted as taboo and derogatory; popular etymology holds that 'sambo' derives from 'sandboy' as in 'happy as a sandboy'; however Spanish or African origins account for the use from about 1704 as a proper name, slipping into a generic sense later in the C18 US, 1957.
2
a sandwich AUSTRALIA, 1984