Used as an adjective or noun to call someone stupid or slow. Can be used in both a joking an offensive manner.
by TOKneverends November 29, 2012

originating from jamaican folklore, it is slang for a ghost or spirit, but nowadays is used as slang to hit someone or beat someone up, or take them for a complete derkhead. duppy is degenerately used by black people who are looking for a fight or little white kids who want to or think that they are the black gangsters....eg
"ill duppy you sam"
"i will take you for a complete derkhead fool"
Watch me duppy this waste guy
observe my beating of this idiotic male
"i will take you for a complete derkhead fool"
Watch me duppy this waste guy
observe my beating of this idiotic male
by datptownguy July 12, 2007

by PushaT June 17, 2018

by KR88 May 10, 2016

A dog that physically looks like an adult dog but in behavior and knowledge of the world is still a puppy.
by SloTwitch September 7, 2009

an adjective which can be placed in front of any word and used to describe anything at all. can be interpreted as a good description of something and interpreted postively or negatively.
Jane: Wow Pete, that shirt is sooo duppy!
Pete: Uh, does that mean you like it or...?
Jane: It can mean whatever you want it to mean!
Pete: So it's a cool shirt, then?
Jane: Well, to you its duppy, to me its duppy, and its all a different kind of duppy.
Pete: Uhh, ok then. Duppy!
Pete: Uh, does that mean you like it or...?
Jane: It can mean whatever you want it to mean!
Pete: So it's a cool shirt, then?
Jane: Well, to you its duppy, to me its duppy, and its all a different kind of duppy.
Pete: Uhh, ok then. Duppy!
by b3c October 6, 2005

Adjective; something so great that no other word in the english language can be used to describe it.
by TyCizzle April 27, 2006
