Simone为什么 fruitcake 在英文中喻指怪人？
的有关信息介绍如下：
The simple answer is that fruitcake often has nuts in it.
A "nut" can be slang for a person who behaves strangely. And because fruitcake often has nuts, it has also become a slang term for a person who behaves strangely.
For example:
Remember to use the article "a" and be careful who you call a fruitcake. Some people might be really offended.
I hope this is helpful.
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