A slang term for the very serious medical condition duphershypertrophy whereby the sufferer acquires over time excessive fatty tissues to the nasal region, giving the patient the not unpleasant features of a gnomish looking fellow; rosy cheeks from the strain of holding one's nose up all day, at times somewhat gormless facial expressions (which can be attributed to the drag-factor but more often can lead an innocent bystander unaware of the condition to conclude that the sufferer is possibly some sort of simpleton) and of course the ever-expanding, bulbous nose which grows and grows like in that fable about the enormous turnip...
Watch this, that pot of coffee is almost out, that guy is going to get Duffered. "Fuck man, I just need a cup of coffee, now I have to make a damn pot, you guys suck!"
A Duffer Doo is a boy who gets his girlfriend in bed a ready for sex then epic fails with a condom not only once but TWICE and goes for the third until his girlfriend says it okay no more. Duffer Doos are generally virgins and don't know how to get any.
BK1 "Oh did you hear about that one kid?"
BK2 "Yeah he was such a Duffer Doo last year"
BK1 "Last year? He still is, what epic fail"