I learned a very similar song in grade school (I am now 45!) in New Jersey . . . The version I learned went something like this:

"Bajan boy, go back to your borning country/Small island boy, go back to your borning country/You come from Antigua with your foot full of chigger/Bring your guitar to sing to my daughter/Bajan boy, go back to your borning country"

No one I sing it to recalls it--not even my twin sister! I, too, am trying to find out more about the song but cannot. Your post is the closest I have come to knowing that I did not, in fact, dream it up.

Good luck. Please post whatever you find.