guǐ zi
devils
refers to 日本鬼子, wartime term insult for Japanese
Rì běn guǐ zi
Japanese devil (common term of abuse in wartime China and in subsequent writing)
yáng guǐ zi
foreign devil
term of abuse for Westerners
èr guǐ zi
traitor
collaborator with the enemy
Dōng yáng guǐ zi
foreign devil
wartime term of abuse for Japanese