moonlighting

Definition

The act of holding a second job, especially secretly, in addition to one's primary employment.

Etymology

Derived from the phrase 'working by the light of the moon,' it originated in the early 20th century to describe taking on night work to earn extra income outside of one's regular day job.

In the news

The term is used in the article's footer to describe a case where an employee was penalized for working for a rival firm while employed by another company. It highlights the legal complications that can arise when employees have undisclosed outside employment.

Singapore High Court dismisses law firm’s appeal over ex-employee's probation notice pay

Human Resources Online

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