Right on.

Now THIS is the real reason why "Kumbaya" is a dirty word. It means "Go f*ck yourself!" in Navaho. It's even worse than saying "Kimosavay" (which means "you are the progeny of a wild dog and a traveling snake oil salesman")! So never ever sing "Kumbaya" when you're visiting the Navahos, but feel free to sing it anywhere else you please without hesitation.