make it one's business

English

Verb

make it one's business (third-person singular simple present makes it one's business, present participle making it one's business, simple past and past participle made it one's business)

1. To undertake to accomplish something or see it done.
   • 1997, Virginia DeBerry, Donna Grant, Tryin' to Sleep in the Bed You Made:

     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.