The significance might be that it represents the end or the caboose of the story, just as it is at the end of the train. It could be a symbol of closure or the final destination in a metaphorical sense.
I'm not sure which specific 'black caboose in the back story' you're referring to. There could be many stories involving a black caboose. Maybe it's part of a railroad story where the black caboose was at the end of the train, often used by the crew for various purposes like sleeping or storing equipment.
The 'little red caboose story' usually tells the tale of a little red caboose that is part of a train. This caboose is likely to be a character in its own right. It could be about how it was built, painted red, and became part of the train. There might be a story of how it gets left behind at a station by mistake one day and has to find its way back to the train. It could also involve the people who take care of the caboose, like the train conductor who checks on it regularly to make sure it's in good condition.
Possibly. Many children's stories use elements of misbehavior and consequences. If the little red caboose is a cute character in the story, and the spanking is not overly violent or inappropriate, it could be a children's story. However, it also depends on how the story is written and the overall tone. For example, if it's written in a very simplistic and moral - teaching way, it's more likely to be a children's story.
The main character is likely the little red caboose itself. There might also be the train engineer who drives the train that the caboose is attached to.
I'm not sure specifically what this 'the little red caboose spanking story' is about as it's not a common well - known story to me. It could potentially be a story where the little red caboose gets into some sort of trouble that leads to a spanking in a fictional or children - like narrative.
I'm not sure specifically what the 'black 2idow' back story is as it's not a widely known common term. It could be something very specific to a certain community, game, or personal creation.
The 'Black Phone' is a horror movie. The back story often involves a kidnapper in a small town. He has a pattern of abducting children. The phone in the title is a key element as it seems to have a strange connection to the spirit world. It becomes a means of communication for the kidnapped boy with the spirits of the previous victims, which is a very creepy and central part of the story's back story.