Ghosts comes from a slang term that applies to what type of ethnicities?
Ghosts (2006 film):  The title is a reference to the Cantonese slang term "Gweilo" (鬼佬), meaning "ghost man", used for white people. Gweilo:  In its unmodified form, it applies only to European ethnicities and has a history of racially deprecatory use.
European