One interpretation could be that it's a form of extreme fanfiction that combines two well - known series in a shock - factor way. Maybe the author was trying to create a new and disturbing narrative that stands out.
Perhaps it's a statement on the flexibility of fanfiction. Fanfic writers often like to break boundaries and create scenarios that the original creators would never have thought of. In this case, they're taking Naruto, a beloved character, and subjecting him to the horror of being killed and stuffed in a suit like in FNAF. It could be a way to show that in the realm of fan - created content, anything can happen, even if it's a bit macabre.
I'm not aware of a specific fanfiction with this exact plot. It could be a very dark and disturbing concept. It might be exploring some extreme 'what - if' scenario where Naruto, from the Naruto universe, is somehow thrust into the Five Nights at Freddy's (FNAF) world and meets a gruesome end. But this seems like a very niche and potentially inappropriate crossover idea.
One interesting concept could be the psychological horror of being stuffed into a suit. It gives a sense of claustrophobia and the horror of being trapped in an inanimate object. Another could be the mystery behind who is doing the stuffing and why. It adds an element of suspense to the fanfiction.
Often, there's the victim who gets stuffed in the suit. This character could be an employee who made the wrong move in the haunted pizzeria. And then there are the animatronics like Freddy, Bonnie, and Chica which are usually central to the story as they are either the cause of the stuffing or part of the horror that the stuffed character experiences.
One possible interpretation could be that it's a story about a little boy in Birmingham who has a collection of stuffed toys and the adventures he has with them. Maybe the toys come to life and they go on a journey together in the boy's imagination.
It could be a creation of some powerful ninja magic. Maybe a ninja with unique abilities created it as a tool or a companion, and it somehow ended up with Naruto.
It could also mean that Naruto's actions, which seem normal on the surface, are actually part of a more complex and insane plan in the context of the fanfiction. For example, his pursuit of becoming Hokage might have a much darker and more insane motivation that he keeps secret.
One possible interpretation could be exploring gender identity in the Naruto universe. Since Naruto has always been male in the original, this change could lead to new storylines about how he is accepted or not in the ninja world. Another could be related to relationships. His relationships with other characters like Sasuke or Sakura might take on different dynamics if he is a hermaphrodite.
One possible interpretation could be a fanfiction that focuses on the nurturing aspect of motherhood in the 'Naruto' world. Maybe it's about a female character like Hinata taking care of her baby in a traditional nurturing way, which could include breastfeeding. It could also be about the bond that forms between a mother and a child through this act of caregiving.
One possible scenario could be a power imbalance. Maybe Sasuke discovers some new, extremely powerful jutsu that Naruto has no defense against. For example, a jutsu that can nullify Naruto's chakra or attack his spirit directly. Another possibility is a miscommunication or a breakdown in their relationship. If Sasuke believes Naruto has betrayed him in some way, his anger could lead him to kill Naruto. However, this goes against the core of their bond in the original series.
One plotline could be that Naruto was mind - controlled by a powerful villain. He wakes up to find he has killed his clan and has to deal with the shock and guilt while also trying to clear his name.