Deep lore: Refers to black men who only date white women. Reference to the Shakespearean play of the same title about a black man named Othello married to a white woman.
Deep lore: Typically refers to Lithuanians who have recently moved to North America, or sometimes Lithuanians still living in the old country. Not usually used to refer to exiles (see "Lugan").
Deep lore: Mainly used in the past by whites to describe the Chinese whom they saw as strange and from some where far away. The Chinese used to refer to their nation as the "Celestial Empire"
Deep lore: Possibly from how Filipinos often travel overseas to work like migratory birds (although the seagull is not migratory...). Heard in Japan, used by non-Japanese.