Going off of what Spirifox said,
"Ok, I didn't write this, someone on Mark's channel in the comments did (I forget their name, sorry) but they came up with this:
"Can you imagine the fact that I don't know which I'm supposed to be in? Why don't you go rule me on it. Same old few things as ever. You under the table trade off punts. Can you understand me? Nobody does. Listen, there is a body at the door. Should I get rid of him? Find me at grave field"
Since the person has receptive aphasia it's more of "what are they trying to say" instead of "what does it mean"
I did a search for grave field and found that there is a grave field in Germany (since we've discovered some of the dialog is German)
- Kinding-Ilbling, Eichstätt district, Germany
I dont know if this has any bearing on the game or not, but there it is just in case.