clean up (one's) act
(redirected from clean up his act)clean up (one's) act
To improve one's behavior. After I got in yet another fight at school, the headmaster told me that I had to clean up my act or else I'd be expelled.
clean up your act
COMMON If a person or organization cleans up their act, they stop behaving badly or illegally. The Minister warned the press that privacy laws would be implemented unless newspapers cleaned up their act. There is enormous corruption in the game, but the game does not want to clean up its act.
clean up your act
behave in a more acceptable manner. informalclean up your ˈact
(informal) start behaving in a moral or responsible way: He cleaned up his act and gave up the cigarettes and alcohol.clean up (one's) act
Slang To improve one's behavior or performance.