Barry Louis Polisar - Hey Jack, What's in the Sack? lyrics

Hey Jack, what's in the sack? What's in the sack That you're carrying on your back, Jack? It bounces and it moves, I think that I can hear it talk it makes you go so slowly And stumble when you walk. I know they say that you're deranged And I think that it's alive I know that something's very strange; I think you have someone inside. Now I know I heard a voice, It sounded like a cry. I thought I heard a whimper But I don't want to pry Its heavin' and it's movin' And it's rollin' out the door It's little Billy Nicholson-- Say what'd you have him in there for? Hey Jack, what's in the sack? What's in the sack That you're carrying on your back, Jack?