Yep, an original by Kurt Cobain.
I posted these here because I wanted to contribute them to this board. Nobody said that the contributions had to be of your own invention.
But I'm not a theif (of words, anyway) and so I post such contributions under the author's name. Among others I've posted are by Lew Welch and Gary Snyder and Allen Ginsberg. You should read them, they're all very good.