Idiom: What does "spot white" mean?
Source is a 1934 film, Mandalay, starring Kay Francis. Her character, Tanya, is abandoned by her lover as they cruise the Far East in his yacht. She takes up the only work she can find, "hostessing" in a Rangoon "nightclub" until she gathers enough funds to escape that life. "Spot White is her name?" asks a patron as she makes a glamorous entrance one evening. "It ought to be Spot Cash." I get that reference, but why she would be called Spot White in the first place is a mystery. Any aid appreciated, thanks.