Need some clarification before I get in trouble with the answer police. Do you mean you can't tell what he's saying, or you're not sure what he means??

Here's what I think he's saying, not necessarily in the same order of verses.

Land of the brave is the home of the free,
Don't wanna be mistreated by no bourgeoisie.

Nickle is a nickle an' a dime's a dime;
Got a house fulla chillen, ain't none of 'em mine.

All you colored people come & listen to me
You better stay away from Washington D.C.

I know a song, goes "Dee dong dong,"
If you go to Loo-zee-an-an, don't stay long.

White men in Washington, they know how;
Throw a man a nickle, just to see him bow.

[Spoken, more or less on beat: Me an' my wife, an' Allen Lomax and his wife, ridin' around Washington. But we couldn't get in nowhere, cause we had white people with us.]

Nickle is a nickle an' a dime's a dime;
I'd tell you more about it but I ain't got time.

I supposed in the spoken interlude he means he's looking for a speak-easy, but nobody ever confirmed that. I think the reverse race discrimination is amusing--can't trust those shiftless white folk not to report you to the police. He might say, "Throw a colored man a nickle." I can't remember if I dropped that out myself or if it was never in there to start with.

Does that help??

CC