I think this song is definitely an addiction to a drug and someone is nagging him about it. He's done it a thousand times and has tried to quit a thousand times and he's telling this person that he will stop and do anything for their forgiveness. He asks "Joe" for a buck for some "food" but really he uses it to get a drug of some kind, and 2 hours later his addiction is "lapping at his heals" again.
I think this song is definitely an addiction to a drug and someone is nagging him about it. He's done it a thousand times and has tried to quit a thousand times and he's telling this person that he will stop and do anything for their forgiveness. He asks "Joe" for a buck for some "food" but really he uses it to get a drug of some kind, and 2 hours later his addiction is "lapping at his heals" again.