The Duppy is an evil spirit or ghost that originated in Jamaican folktales and made its way to Barbados. It often appears in the form of a dog barking or howling through the night. Another folktale says that Duppies live in the buttress roots of silk cotton trees.
Friend: Yo, Duppy Who You Smokin' Dawg?
you have been physically assaulted person of african/black descent
"watch me duppy this waste guy"
observe my beating of this futile male
"i will take you for a complete derkhead fool"
Watch me duppy this waste guy
observe my beating of this idiotic male