have a broad back

1. To be unaffected by criticism or judgment. Being the only artist in a family of doctors has taught me to have a broad back. Don't give David any notes about his novel. He doesn't have a broad back and will interpret less-than-effusive comments as criticism. Listen, kid, you need to toughen up. You'll never make it in this industry if you don't have a broad back.

2. To be able to help or counsel others without tiring. You've got to have a broad back to be a therapist, that's for sure! I thought I had a broad back, but I am getting so burned out. I don't know how much longer I can care for my mother. Yes, I have a broad back, but it would be nice to get some support for a change, instead of just giving it!