illegal full-time union activity; union official moonlighting
Refers to a union employee who is paid by the company but works full-time on union activities without proper authorization, often in violation of labor laws.
The illegal full-time union activity was uncovered and became an issue between the union and the company.
The Labor Standards Inspection Office began an investigation into the actual state of illegal union moonlighting.
Standard spelling using katakana for ヤミ (illegal/underground) and kanji for 専従 (full-time engagement).
Kanji spelling using 闇 (darkness/illegal). Less common but still encountered.
Compound of ヤミ (illegal, underground) and 専従 (full-time engagement). The term emerged in Japanese labor law contexts to describe union officials who are paid by the employer but work exclusively for the union without proper authorization.