The Tomorrow after Tomorrow

We tried to go to our neighborhood post office to pick up a package (thanks Coco!) yesterday, and it was closed, in the middle of the day on a Friday, with a sign taped to the door. I wasn't the only one surprised by this, and many people were crowding around to read the sign. Of course I might have been the only one who had no idea what it said. Our driver got out to offer his help and read the sign and I guess didn't know how to explain it in English to me, so he simply said, "maybe tomorrow?" And then added "or the tomorrow after tomorrow." While not grammatically correct, it struck me as a beautiful turn of phrase. Maybe we should start using it.