Some time ago I saw a bumper sticker that said "God was my copilot, but we crashed in the mountains and I had to eat him". Now, while this is obviously a twisted joke playing off the "God is my copilot" slogan, the funny thing is that it's consistent with Christian doctrine.
According to the Bible, once humans were in a state of perfect grace in the Garden of Eden, and able to walk side by side with God. Then with the eating of the forbidden fruit humans fell from grace, and were exiled to the harsh, rocky lands outside the garden. A return to grace was eventually provided by God taking on physical form as Jesus, who symbolically gave his body and blood to be eaten by his followers so that they might have life (eternally in heaven).
It is possible that the creators of this bumper sticker did not have this in mind when writing it.
It is also possible that I overthink things.