"old blues song: "jelly roll, jelly roll, sittin' on a fence / if you doan get some you ain't got no sense / just wild bout my jelly / my sweet jelly roll
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""old blues song: "jelly roll, jelly roll, sittin' on a fence / if you doan get some you ain't got no sense / just wild bout my jelly / my sweet jelly roll" What is the definition of "jelly roll"?