Chip on my shoulder

Oh the joys that Musical Theatre can teach us ;) From Legally Blonde:

ELLE
This chip on my shoulder
Makes me smarter and bolder
No more whining or blaming
I am reclaiming my pride

I don't really want to go through life with a chip on my shoulder, but I think I'm all about "reclaiming my pride" and "no more whining and blaming."

I'm happy to be vulnerable to the men that deserve it, but for now (singing) I've got a chip on my shoulder, it's the size of a boulder...