break (one's) back to (do something)

(redirected from break one's back to do something)

break (one's) back to (do something)

To put forth a great deal of effort to do or accomplish something. I've been breaking my back to get a passing grade this semester, so failing by two measly points is incredibly frustrating. Don't break your back to please these people—they'll never appreciate it.
See also: back, break