Someone who is an idoit, a wanna-be hoodlum, a bitch, a slut, whore, tramp, player, etc. or anyother insulting and degrading term. It also my be used as a term of endearment.
joe: "yo! look at my new pants, these jaunts can wrap around my entire body twice!"
john: " dude, your such a slum duppy."
--or--
jane: "oh my gosh your always forgetting about our plans!"
bob; "your such a slum duppy."
john: " dude, your such a slum duppy."
--or--
jane: "oh my gosh your always forgetting about our plans!"
bob; "your such a slum duppy."
by cityyb March 10, 2008
Get the slum duppymug. Duppy hammer is used to describe a person that looks dead or in other words ugly. The "duppy" part describes how the the person especially a female look, the "hammer" describes the tool that the devil uses to do his work. Hammer is also reference to MC Hammer.
by ultimatom May 24, 2018
Get the Duppy hammermug.