ヤミ専従
Meanings
1
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.