Rollin' on a rail road

The story:

I was probably 8 years old and I was trying to impress my older brother who was driving me somewhere how well I knew the lyrics. He had a field day with me. I felt that it was easier to role on a railroad than it was to role on a river. I was picturing a person lying down and rolling. Then I even fealt that a train would role and a boat would float. I think my lyrics are better.