DURL is an acronym for Dumb Ugly Red Loser. Basically any ginger falls into this category, as it's extremely difficult to be just a DUR (if your Dumb, Ugly and Red, you are also a loser). Actually, if you red, you're ugly, in which case you're a loser. So if you're a ginger, you're a Durl.
Hey Shaun White, You fucking durl.
Hey Carrot Top, you fucking durl.
Hey Matt Friedman, fucking durl.