Deep lore: Blacks who suck up to white people. In reference to the Uncle Tom character in the famous 1852 book "Uncle Tom's Cabin" by Harriet Beecher Stowe.
Deep lore: From Arabic "Firanji" or "Firangi" in Egyptian Arabic, meaning "European". Corruption of "French" or "Franks". Made famous in a slyly ironic way by the ultracapitalist Ferengi on Star Trek.
Deep lore: Because they are known to have a lot of beans in their diet and are also hired many times to pick beans for (sometimes less than) minimum wage.
Deep lore: May be a contraction of 'Bohemian/Hungarian', and might refer to Hungarians, Czechs and Ukrainians (As well as Russians). Possibly of Slavic origin. See: Honky.