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!
by b3c October 6, 2005
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Adjective; something so great that no other word in the english language can be used to describe it.
Yo Loo, those Nike Air Max 90s are huge duppies, whered you get em?
by TyCizzle April 11, 2006
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Also a three-piece electro art-pop band from Deptford, SE London, UK.
Hey, who are Duppy?

Duppy are a three-piece electro art-pop band from Deptford, SE London, UK.

Thanks for the informative answer!
by Darranps January 20, 2009
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Jake: Hey Becki wanna Duppy!??

Becki: Erm no erm yes erm wait i'm confused

Oli: Hey Becki wanna Duppy!?

Becki: What does Duppy mean??

Boys: Sex!

___________________

Joe: Saw that girl from the gig last night

Ben: Yeah and...

Joe: i Duppied her goood

Ben: No way you gave her some N-Dubbin

Joe: I Duppied every hole mate!
by Whitewood July 15, 2009
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spirit or ghost conqueror. Duppy is caribbean word of West African origin meaning ghost or spirit
by cmayer December 16, 2008
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By GRM. A better version of Genius Open Mic. Basically has UK artists do an original freestyle with better editing and has more energy to it.
Me - "Yo, have you heard of M24's Daily Duppy? It's fuckin lit."
Friend - "Nah, you trippin. Unknown T's was better. His wordplay and flow was mwad, fam."
by L3gion Legacy February 19, 2021
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Marijuana that is so good, your friends make it disappear in the night. Ghostly actions happened to your dope! Rasta reference emulated into word.
First Stoner: "Hey man, where's that great smoke from last night?" "What kind was dat anyway?"
Second Stoner: "Dat was my Duppy Weed!"
by monkeygirlmarley December 23, 2010
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