What can be the possible motives in female castrates man stories?

Well, in a fictional and very dark context, it could potentially be about revenge. If a woman has been severely wronged by a man in the story, perhaps in an extreme and misogynistic way, she might be depicted as taking this drastic measure out of extreme anger and a desire to cause the ultimate harm. But this is a very disturbing and unethical concept.

There could be some stories that touch on this theme in a more symbolic way. Maybe not literal castration but a metaphorical emasculation of a man by a female character. This can be seen in stories where a powerful female figure takes away a man's pride, power or masculinity through her actions, words or manipulation.

His motives could be power. He might want to rule the land of stories.

Well, in a dead man story, motives can vary widely. It could be self - defense. Perhaps the dead man attacked someone first and in the heat of the moment, the other person fought back and accidentally killed him. Or it could be a matter of jealousy. If the dead man had a relationship that someone else desired, jealousy could lead to his death. Also, in some cases, it could be a random act of violence by a deranged person who had no specific reason to target the dead man other than a general urge to harm.

Another motive might be related to the boss's own insecurities. If the boss is in a difficult position in the company or in his personal life, he may try to gain some control over someone else, in this case, the man, through blackmail. It could also be that the boss has some secrets he wants to keep hidden and uses blackmail to ensure the man's silence. For instance, if the boss has misappropriated company funds and the man has some knowledge about it, the boss might blackmail the man to prevent him from reporting.

One possible motive could be revenge. Maybe he was wronged in the past and is now taking it out on others.

Perhaps he has a mental disorder that makes him unable to control his violent urges. He might not even fully understand his own motives, just acting on some dark impulse within him. Another possibility is that he is being controlled by some external force, like in a horror story where a curse or an evil entity is making him commit the slaughters.

It could be for comedic effect. Writers often use absurd situations to make people laugh. So, the idea of a woman putting a man in a washer is so outlandish that it can bring a lot of humor to the story. Another motive might be to show the woman's dominance in the relationship in a very extreme and funny way. In some stories, it can be a way to turn gender roles on their head.

In fictional stories, her motive could be financial gain. She may think that the older man has more resources and can provide her with a more comfortable lifestyle. Another motive could be a sense of rebellion. Maybe she comes from a strict family or society and seducing an older man is her way of breaking free from the norms. Or perhaps she has a complex about her own youth and is attracted to the maturity and experience of the older man.

I'm not aware of any 'famous' works specifically about this extremely disturbing and unethical concept. Such a topic involves extreme violence and goes against basic human rights and ethics, so it is not a common or acceptable theme in mainstream literature or art.