Gweilo

"Ghoul person"; Cantonese vulgar and rude slang for white people, sometimes as a racial slur

Gweilo or gwailou is a common Cantonese slang term for Westerners. In the absence of modifiers, it refers to white people and has a history of racially deprecatory and pejorative use. Cantonese speakers frequently use gwailou to refer to Westerners in general use, in a non-derogatory context, although whether this type of usage is offensive is disputed by both Cantonese and Westerners.

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