It just means "Do not blame me for things being the way they are."
I assume you heard or read this in A Christmas Carol by Charles Dickens. Scrooge complains when the Ghost of Christmas Past is showing him a particularly painful scene from the past. The Ghost responds by saying "I told you these were shadows of the things that have been. That they are what they are, do not blame me!" Although the Ghost is showing him the things that happened in the past, the Ghost is just presenting the truth and isn't responsible for what Scrooge has done in the past. It's akin to idiom "don't shoot the messenger!"
No one to blame.
deserving blame or criticism
The stem "culp" means fault or blame. It is commonly seen in words like culpable (deserving blame) and exculpate (to clear from blame).
To run away from something and avoid blame
First it not always a root word. It can be a prefix or possibly a suffix. Second, it means blame. As in "He was the culprit of the robbing of the bank.
To blame someone else for an error.
The prefix "culp-" means fault or blame. It is derived from the Latin word "culpa" meaning fault or guilt.
'Cover Your Own Arse' - a saying that means to take precautions so you can absolve yourself of blame, if someone tries to blame you for something.
Culpant is the third person plural present indicative of the verb culpo, which means "blame".Ergo, culpant means "they blame".
It is from the Latin and literally means "Blame (culpa) is mine (mea)"
To be reprehensible, blameless, without blame, innocent, free from accusation.
Mia Culpa means "my fault" or "I'm to blame"