Oct, you're into techno music, right? Someone needs to take that "Yeeeaaaghhhh" (or however grun spelled it) and lay it down to some phat (see, I'm hip) techno beat. Loop it repeatedly. You know, with the little syncopated cutoffs and layering that are in every good cliche techno song. Maybe stretch it out too, so it forms kind of a melancholy "yeeeeaaaaaaaaaaaggghhhhh" chant in the background, that you can lay a series of short, staccato "yeeagh"s over.
That'd kick ass.