Here's an excerpt from Lynne Fauley Emery's book "Black Dance from 1619 to Today" {second edition; Princeton Book Company, 1988, pps 1146-147}:

"The Coonjine, another of the river dances, was still "remembered in scattered areas through the Antilles" as late as 1963. In the Caribbean, however the dance was performed during carnival time and called the "Counjaille", while in the United States the Coonjine was performed on the waterfront by the black roustabouts and "was a rhythmic shuffle affected to expedite loading and unloading..." Harold Courlander reported:

'The term Counjaille, or Coojine is still used in southern United States waterfront areas to mean moving or loading cotton, an activity that once, in all probablility, was accompanied by Counjaille-type songs and rhythms. Negro children on the docks and levies sand such songs as:

Throw me a nickle, throw me a dime
If you want to see me do the Coojine.'

According to Mary Wheeler. The Coonjine was a combination of song and dance connected with frieght handling on the steamboats.

'The "plank walk" springs under a heavy weight or even under the lighter step of the rouster when he trots back again empty handed for more freight. To avoid jarring, the feet are dragged along the stage plank accompanied by a song that takes its rhythm from the shuffling feet and swaying shoulders.'

Allen, Ware, and Garrison mentioned the Coonjai and described it as a sort of Minuet, Unfortunately, although the authors spparently saw the dance, they described the musical accompaniment rather than the movements".