When effort to earn additional income through a second job does not bear fruit, such type of efforts & the consequent results may be called as

When effort to earn additional income through a second job does not bear fruit, such type of efforts & the consequent results may be called as Blue moon lighting. Moonlighting refers to the practice of working a second job outside normal business hours. Therefore, an employee may work a normal 9-to-5 job as a primary source of income but work nights at a different job in order to earn extra money.