make it one's business

present singular third person makes it one's business · participle present making it one's business · participle past made it one's business · past made it one's business

1. To undertake to accomplish something or see it done.

   1 more example

   By junior high, where every forty-one minutes the bell signaled a four-minute parade of hyper-hormoned bodies through sweat-scented halls, Gayle, with her long hair, clear golden skin, and high, tight curves, was, no contest, the finest girl. She made it her business to look cute every day so she'd be noticed by the boys and envied by the girls.

   1997, Virginia DeBerry, Donna Grant, Tryin' to Sleep in the Bed You Made