First of all, this is the studio version of Fat Man in the Bathtub by Little Feat. I have not run into a live version I didn’t love, but it all comes back to the studio version as the introduction for reference of enhancements in live performance.
I’m not really a big Southern rock guy but this song has it all. Great lines, great vocals, fun drums, southern guitars, you name it, it is memorable. I hear you moan, I hear you moan, I hear you moan.
If you dare, check out the interpretations of the song lyrics here.
https://songmeanings.com/songs/view/3530822107858757568
Warning: it’s a lot of debate about sex and drugs and not shy about language describing both. Pretty explicit.