DUTF is the shortway of saying:
double U T F = what the fuck (double U = W).
Nobody knows why a person would use this, because WTF is shorter and easier.
1: WTF dude, you killed him.
2: Oh, that's ok, my mom said I could.
1: DUTF??
Stranded due to ill-conceived on-the-fly immigration policy decisions.
Hey there's a dentist shortage in Australia but all the foreign teaching dentists are being sent home. Well, Melbourne Dental School will be Dutfucked then.