I can find the lyrics to Doc's version of "Little Sadie" at cowboy lyrics.com,but they don't contain the phrase given above. The song on Black Mountain Rag is just called "Sadie", .    "Black Mountain Rag" is a compilation from three albums he and Merle recorded for FlyingFish. I was moving fast, but I didn't find a song called "Sadie" on any of those threem and wonder if it was retitled.