I have read the following sentence from Diary of a Wimpy Kid 1.
After I got done mopping the floor with Rowley today, I headed home.
I understand this sentence as: After I finished mopping the floor with Rowley, I headed home.
or I get mopping the floor done with Rowley today, i headed home.
My question is, how should I parse the structure of this sentence? Is there any likelihood that "I get done" means "I am done", meaning I am going to die? How can I comprehend it correctly?