A Man in Dallas sees a Sailor walking with smoke coming out of his rear end. He is curious and asks him about the strange condition. This is what the sailor had to sing about.....

  "I am a man from Dallas
  My balls are made of brass
  In stormy weather, they clash together
  And the sparks come out of my Ass... "

Way I heard it was:

There was a man from Fort Pass,
Whose balls were made of brass,
Wheh he clanged them together,
It made stormy weather,
And, lightning shot out of his ass!!!!!1