knock/talk some sense into somebody

knock some sense into someone

 and knock some sense in
to strike one, making one smarter, or at least obedient. I think his father finally knocked some sense into him. The accident finally knocked in some sense. I thought that last week's experience would knock some sense in.
See also: knock, sense

knock/talk some ˈsense into somebody

(informal) try to persuade somebody to stop behaving in a stupid way, sometimes using rough or violent methods: I wish somebody would knock some sense into our politicians.Try and talk some sense into her before she makes the wrong decision.
See also: knock, sense, somebody, talk

knock some sense into

To beat or hit (someone) in an effort to teach a lesson or cause a person to adopt an acceptable pattern of behavior.
See also: knock, sense