RhymeZone: duppy definitions

Definitions of duppy:

noun: (Caribbean, Jamaica) A ghost or spirit, often appearing in the form of a dog barking or howling through the night.
noun: (Jamaica, games) A drawn game of noughts and crosses (in Jamaica tii-taa-tuo).
verb: (MLE, MTE, transitive) To kill; to murder.
verb: (MLE, by extension, transitive) To excel in.

(Definitions from Wiktionary)