My experience with Dead Milkmen is that a little goes a long way. I do like "Punk Rock Girl" and "Smokin' Banana Peels" from that album a lot, though.
I like "Teenage Dirtbag". It's one of those songs where all the elements work together - e.g., the singer would probably be insufferable in many other contexts. Even Girls Aloud couldn't improve on it in their cover.