Lyric discussion by SeanMurphh 

Cover art for Money (Let It Go) lyrics by Taking Back Sunday

Theres obvious literal meaning behind this song, about a girl who just spends all of a guys money and doesnt really care about him, and just uses him, but he doesnt care or do anything about it.

But I think that there could be another meaning here, I think possibly the "girl" in this song could be a metaphor for drugs.