Shakedown
Shakedown is a term with multiple related meanings in English, used as both a noun and a verb. In engineering, transportation, and project contexts, a shakedown or shakedown run refers to an initial testing phase of new equipment, vehicles, or systems to locate faults and verify performance before regular operation. A ship, aircraft, or other complex machine may undergo a shakedown cruise after construction or major repair to ensure all components function under real-world conditions.
In slang and informal usage, shakedown can denote coercive pressure to obtain money or valuables, typically
In prison and law enforcement vernacular, a shakedown refers to a thorough search of cells or facilities
Origin and usage: the expression derives from the notion of "shaking down" someone to extract payment or
See also: shakedown cruise, extortion, corruption, prison search.