Quoth <bgreenst@miracosta.cc.ca.us>:

Piece of Dirt is one of my favorite TMBG songs, and I couldn't help but realize that nobody had posted any interpretations for it. Anyway, here's mine;

Piece of Dirt is about a man who suddenly finds himself isolated from the rest of the world. His "Whole world has slipped away" and he finds himself standing alone on a piece of dirt (Figuratively, of course).

As he sits on the dirt, he realizes new things about life. "A Woman's voice on the radio can convince you you're in love - A woman's voice on the radio can convince you you're alone." He's figured out that the farther you are from something, the more beautiful it seems.

"But I set my sails so long ago, they've revoked my sailors badge." He once set out to join the world, but the world rejected him, and he now is forced to be "content and happy, on this ink spot where I stand"

The song ends with the man feeling haunted by "A spooky man named me." I've concluded that this is not referring to Mr. Me, the character in the next song. Instead, the man is being tormented by himself, instead of by the others he drifted away from, and he wishes he could jump out of his skin, leaving himself behind as well.