evil twin
邪恶的双胞胎；某人的邪恶副本
幽默·形容邪恶的另一个自己
英文释义
an alter ego or counterpart who is characterized by evil or malicious traits, typically used humorously or metaphorically to describe someone who has similar characteristics but behaves in a negative or harmful way
例句
My evil twin would have eaten the whole cake, but I resisted.
典故来源
源自文学和影视作品中常见的双胞胎设定，一个善良一个邪恶，比喻人的另一面。