I asked the same question that myself and others have worked together to answer. We've concluded with the following: "Running down, through the streets, Boys in blue after me. The moon is full, and I won't sleep, 'til they get a piece of me..." The chorus hasn't successfully been interpretted, but I'm willing to bet it goes a little something like: "You can not chase me down, I'm the one, baby, call me clown. ??? ??? ??? ??? ??? ???, I'm the one, Atomic Clown!"