A [Cantonese] (Chinese) word for a person or persons of Caucasian descent. In the past, it was meant as a demeaning racial slang towards people of white decent. However; over time it has lost its meaning and is no longer meant as a degrading word. It is now used freely and carries no derogatory meanings.
The more politically correct term is [bakyen] which means white people/person. However, this term is not as prevalent as guailo. Another common version of this term is [bakguai] which means "white demon"; which too no longer carries a derogatory meaning.
The literal meaning of "guailo" means "demon guy", "ghost guy".
Alternate Spellings: guilo, guilou, guailou
> Why are there so many guailo here at this restaurant?
> Guailo don't know how to eat Chinese food.