Shake (it) Sugaree

What is the meaning of the phrase "Shake Sugaree" being a folk song best done by Elizabeth Cotton?

Let me point out the Grateful Dead song "Sugaree".

"Just one thing I ask of you, just one thing for me.
Please forget you know my name, my darling sugaree.
Shake it, shake it sugaree, just don't tell them that you know me."

I'm pretty sure "sugaree" is a term of endearment like "chickadee", or "sugar pie".

The Elizabeth Cotten song predates the Dead's song by about 4 years. No doubt the Dead had heard it and were paying tribute. Here's the first stanza of "Shake Sugaree" (I've never heard it performed, but it seems more like the Blues than a folk song):

"I've got a secret
I ain't gonna tell
I'm goin' to heaven in a split pea shell
Oh, Lordy me, didn't we shake sugaree
Everything I have is down in pawn"

...the singer's life has taken a downturn but at least she and Sugaree shook things up during their heyday.