Lyric discussion by Wrapid 

Cover art for Comanche lyrics by Cake

No, its definately not a cover. As for the meaning, I'm pretty sure it's about giving PR advice to Native Americans. As always with Cake, you can't really tell if they're being serious, ironic, political, or just messing with you. As a song, it's pretty great, and it puts you in the right mindset for the rest of the album.

And just so you know, your username is wrong, it's bad motoguzzi. (an italian motorcycle company)