Lyric discussion by fragile.whore 

Cover art for Spineless lyrics by Alanis Morissette

I think this song is saying how so many people become "spineless" when trying to impress someone, for example a boyfriend. It's trying to say "I'll become who you want me to be, I'll change all my opinions and beliefs, and I'll be no trouble for you". I like this song, because I've seen this kind of thing happen to so many girls when trying to impress a guy. They pretend they're something they're not.