Metal Airplanes Lyrics

Lyric discussion by guth1004 

Cover art for Metal Airplanes lyrics by Matthew Good

I think it means that he's trying to change his life but keeps falling back on the girl he loves despite how much she is bad for him.

"Don't you mind the gap when you leave, there'll be time enough to turn tail tomorrow"

For him he always ends up falling back and going back to her, turning tail, etc.