Perhaps it means that anger can cause the deterioration of the narrative of one's past. For example, if someone is always angry about things that happened in the past, that anger can make the memories seem worse and can even change how they tell the story of their life to others. It can add a negative and rotting quality to the back story.
Well, 'anger rots back story' might be suggesting that anger has the power to corrode or spoil the story behind a person. Let's say a person had a fairly normal childhood but they are full of anger now. That anger can start to color their memories of the past. They might focus only on the bad parts of their childhood, or even distort the good parts, so that the overall back story of their life becomes a rotten, negative version of what it really was.
It could imply that anger has a negative impact on one's past experiences or the story of their life. When a person is constantly angry, it might taint how they remember or view their own history.
One way is through mindfulness. By being aware of one's anger when it arises, a person can choose not to let it influence their view of the past. For example, when angry thoughts about past events surface, simply observing them without judgment can prevent them from taking over the back story.
It usually means getting back to the main narrative or plot. Like when you've gone off on a tangent and need to return to the core of the story.
A back story is basically the background or history of a character or situation that helps explain their current actions or circumstances.
In a story, 'back' can mean returning to a previous place or situation. For example, a character might go back to their hometown.
It could mean returning to a narrative or a story that was previously being told or read. Maybe you stopped in the middle of a story and now it's time to go back to it.
It usually means retracting or changing a previously told story or statement. Like if someone said something and then later tried to make it seem less important or different.
It could refer to looking back on the story or some aspect of it, like reflecting on past events or characters.
I'm not entirely sure what 'butts a back story' specifically means. It could potentially be a very creative or misphrased way of saying 'but there's a back story'. If it's the latter, a back story is just the background or history related to a person, event, or situation.
The word 'back' in a story often implies a regression or reversal. It could be a character going back to their hometown, or the story going back to an event that happened before to provide more context. It all depends on how the author uses it to shape the narrative.
It usually means to retract or modify a previously told story or statement. Maybe because new information came to light or it was inaccurate.