backmasking on 'dirt'?

Ok, this is something that's bugged me for a while. I vaguely remember reading somewhere that Iggy experimented with backmasking during the 'Dirt' track of Fun House. I listened and picked out what I thought may have been the alleged backmasking; he seems to mutter something sounding like "shizaw" between "burning"s toward the end of the song, and there are some longer half-whispered utterances here and there. I don't really have the technological know-how or means to play the track backwards, but what I kept hearing seemed like it could possibly be "washes." I don't really know what that would mean, if anything, but has anyone else heard anything about backmasking and 'Dirt' (or any other Stooges songs)?

Where did you read this? I've never heard of that before, but I'm not denying that it's a possibility.
I can't say though, that in all my years of listening to "Dirt" that I've ever felt like there was backwards stuff hidden in there.
Cheers,
Richard

I can't for the life of me remember where I read this, although I'm pretty sure I didn't just imagine it...hmm....