Jamaican Creole (Jimiekn/Patwa/Jamaican)
Jamaican Creole or Jamaican Patois is a creole based on English and languages
of West and Central Africa. It developed during the 17th century and includes
significant influences from various dialects of English, especially those
of Scotland and Ireland. Over 4 million people speak Jamaican Creole, most
of whom live in Jamaica. There are also many speakers in parts of the USA,
Canada, Brazil, Costa Rica, Panama, Nicaragua and the UK.
Jamaican Creole is used mainly as a spoken language, though has been used
to some extent as a literary language for over a century. While there is
no standard spelling system, increased use of written Jamaican Creole in
recent years has led to a partial standardisation.

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http://www.omniglot.com/writing/jamaican.php