This is the way my Grandmother used to sing it to me over 60 years ago

Oh see that watermelon a-smiling on the vine
how I wish that watermelon she was mine
oh the white folks damn foolish they need a heap of sense
or they wouldn't leave it there upon the vine

Oh the hambone am sweet and the bacon am good the possum fat am very, very fine, but its give me oh give me oh how I wish you would
that big watermelon smiling on the vine.

When the dew am fallin' that mellon mighty cool
then it will taste most awful fine.
Well then I's gonna fetch it, or else I is a fool to a-leave it there a-smilin' on the vine.

Talk about your peaches, your apples and your pears, and the cimmom that grows on the cimmom tree. Well bless your heart my honey for your trucket and your wares, but the watermelon am the fruit for me