Fall Out Boy - I've Got All This Ringing In My Ears and None On My Fingers Lyrics Meaning

I think this song is about a relationship where the guy loves the girl but isn't in love with her anymore.

"You’re a canary, I’m a coal mine
Cause sorrow is just all the rage" - the canary and the coal mine.. If the coal mine is poisonous, the canary dies. It shows him bringing her down because she needs him so much.

"Take one for the team
You all know what I mean" - him not wanting to break it off, because it will hurt her so much, therefore he is 'taking one for the team'.

"And I’m so sorry, but not really
Tell the boys where to find my body" - he's sorry for feeling this way, but not really as he has fallen out of love with her. He will tell her where the body is, but is telling her to tell the boys, as that is who he really wants to know.

"New York eyes, Chicago thighs
Pushed up the window to kiss you off" - remembering how beautiful she is. 'pushed up the window...' making an effort to kiss her, but by adding the 'off' at the end, signals the end of the relationship/him being in love with her.

"The truth hurts worse than anything I could bring myself to do to you
The truth hurts worse than anything I could bring myself to do to you" - telling her the truth (that he isn't in love with her), is worse than anything he could physically do, such as cheat on her etc.

"Do you remember the way I held your hand?
Under the lamp post and ran home
This way so many times
I could close my eyes" - makes me think of childhood sweethearts, and he is remembering the god times, when the relationship was innocent and exciting.

just my take on it =]