shakedownPronunciation: /ˈʃeɪkdaʊn/Definition of shakedown noun informal, chiefly North American 1another term for shake-up.a major British monarchy shakedown 2a thorough search of a person or place: nightclub owners were constantly subject to shakedowns by a corrupt police department 3an act of swindling someone or extorting money: he had served time in federal prison for shakedowns on school construction projects in Alabama 4a test of a new product or model, especially a vehicle or ship: he gave the car its first ever shakedown at Silverstone 5a makeshift bed. shakedown in other Oxford dictionaries Definition of shakedown in the US English dictionary