haji: Disgrace, shame.
hakujin: Caucasian(s); white(s).
Issei: First-generation Japanese immigrant in America.
ken: A prefecture.
kenjinkai: Association of people who came from the same prefecture.
Nihonmachi: Japanese town.
Nisei: American-born children of Japanese immigrants; second-generation Japanese Americans.
Obon: The summer Bon festival, a Buddhist festival, which honors ancestors.
pachuco: A slang term for a popular slicked-back hair style.
Sansei: American-born grandchildren of Japanese immigrants; third-generation Japanese Americans.
shikata ga nai: It can't be helped. There's nothing one can do.
yogore: Dirt, filth, soil. In this case, word is a derogatory term for "dirty people."