Durka Dur is a sentence coming from a few episodes from the cartoon South Park.
In some episodes there are a group of "rednecks" who got their job taken, and yell randomly "They took our jobs!!".
But every next person to say this sentence starts saying it more and more with a "redneck" accent, and at the end the sentence sounds like "Durka dur!!"

This gig returns randomly, when at a certain episode they rephrase "They took our jobs!!" to "They took his dog!!" or "They broke his jaw!!", but still always ends with "Durka dur!!"

A rarely used Arab word that roughly translates to: "I am a huge homoesexual, why do I say this word? It makes no sense. I am a fag and my existence is null and void."