一扫而空

Explanation: Be swept away overnight. Analogy completely clear. 　　Usage: Partial official; as predicate; with derogatory 　　Source: Mao Zedong's "Farewell, Leighton Stuart," envisaged by the United States, your first choice for righteousness, Acheson had been swept away. " 　　Examples: Envisaged by the United States, your choice of Virtue has been Acheson ~. (Mao Zedong's "Farewell, Leighton Stuart") Thesaurus:  round up the whole gang at one fell swoop, be completely discredited, uproot, completely sweep away, make clean riddance of