It's on her 2008 CD, Running for the Drum. The liner notes say, words and music Buffy Sainte-Marie. and explain:

Keshagesh means Greedy Guts. It's what you call a little puppy who eats his own and then wants everybody else's.

The lyrics are given as:

I never saw so many business suits
Never knew a dollar sign could look so cute
Never knew a junkie with a money jones
They singing Who's sellin Park Place?
Who's buying Boardwalk?

These old men they make their dirty deals
Go in the back room and see what they can steal
Talk about your beautiful for spacious skies
It's about uranium; It's about the water rights

Got Mother Nature on a luncheon plate
They carve her up and call it real estate
Want all the resources and all of the land
They make a war over it; blow things up for it

The reservation out at Poverty Row
There's something cooking and the lights are low
Somebody trying to save our mother earth
I'm gonna help em to save it and
sing it and pray it singing

No no Keshagesh you can't do that no more.
No no Keshagesh you can't do that no more.

Old Columbus he was looking good
When he got lost in our neighborhood
Garden of Eden right before his eyes
Now it's all spyware; Now it's all income tax

Old Brother Midas looking hungry today
What he can't buy he'll get some other way
Send in the troopers if the natives resist
Old old story, boys; That's how ya do it, boys;

Look at these people Lord they're on a roll
Got to have it all; got to have complete control
Want all the resources and all of the land
They break the law for it; blow things up for it

While all our champions are off in the war
Their final ripoff here at home is on
Mister Greed I think your time has come
I'm gonna
Sing it and pray it and
live it and say it singing

No no Keshagesh you can't do that no more.