black operation (noun)

1. The designer's black operation involved secretly copying high-end fashion designs from other labels.

2. The comedian shared a hilarious black operation about a spy who accidentally revealed his true identity during a mission.

3. The main character in the anime series is part of a secret black operation to dismantle an underground criminal organization.

4. The novel's plot revolves around a black operation carried out by a government agency to prevent a terrorist attack.