A side hustle refers to any extra job or gig that someone takes on in addition to their primary employment. It is often done to supplement income or pursue a passion project. Common examples include freelancing, driving for ride-share services, selling products online, or even creating content for social media. Side hustles are becoming increasingly popular as people look for additional income streams.

A successful side hustle can offer financial freedom and flexibility, but it's important to manage your time effectively. Balancing a side hustle with a full-time job requires discipline and strong time management skills. Many people also use side hustles to transition into full-time self-employment, making it a stepping stone to greater independence.