DuffTard 

an annoying retarded poser

EXAMPLE 1
DuffTard: uhh yeah i smoke marajuana and weed
me: its the same fricking thing dufftard

EXAMPLE 2
DuffTard: ugh im just so eeemmmoooo wana see all the cuts on my wrists
me: go cry dufftard

DuffTard by PaytonGwyn July 20, 2006

Dufford 

Only can be defined as a mentally deficient person, or someone who acts in a self-defeating or significantly counterproductive way, an idiot.

Your an idiot, Dufford.

Dufford by Everyonethatknowsyou August 10, 2010