As with so many tunes I have tried to learn recently, I first heard it on one of the CDs made by that stunningly-good young band Tuba Skinny.
You can see them performing it at:
Erika Lewis's wonderful soulful voice is just right for the song.
It was written during the Great Depression and its slang terms would have been immediately understood, heartfelt and meaningful. I'll leave you to work out what kind of people 'tricks' were.