Why the Black Man's Hair Is Nappy?

From Daryl Cumber Dance, Shuckin' and Jivin'

When it was time for the lord to give hair, he called all three of these man, and this is what he said. Well, first he called the white man to come on and get his hair. All right, the white man he went right on up there and got his hair. So the lord called the jew man to get his hair. So the jew man went up there and got his hair, and said, "thank you, lord." So when it got to the black man,the lord called him. And do you know what the black man said? Black man said "Lord, ball it up and throw it to me" And it's been balled up ever since.