Top Definition
Refers to someone who is extraordinarily dumb, as exhibited by extraordinarily bad choices.

It just refers to someone who is exraordinarily dumb. A derivative of "dumbfucks" from the latin dummass frickinious idiotus.

Dude was a total duffus and used gasoline to start his charcoal for the picnic! Hence the fire department and paramedics
DustyDudeによって 2015年06月03日(水)
Name for the worst people in existence, also name for vagina or something thats broken.
Duff: "My name is @##$ Duffus"
Bystandard: "How do you sleep at night"
Patrick!@#$%%^^によって 2006年04月13日(木)
A long, thick, uncircumcised penis; The best sex any member of the female species could hope for.
That guy had quite the duffus!

I had some duffus last night..... it was phenomenal!
imsothugによって 2011年04月29日(金)


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