knock/talk some sense into somebody

knock (some) sense in

To assist or persuade someone to start thinking sensibly (about something). Jason is convinced that he wants to get a tattoo once he turns 18, but I'm hoping we'll be able to knock sense in before then. They think they'll find success with their high school rock band, so I hope that getting booed off the stage at the talent show knocks some sense in.
See also: knock, sense

knock (some) sense into (one)

To assist or persuade someone to start thinking sensibly (about something). Jason is convinced that he wants to get a tattoo once he turns 18, but I'm hoping we'll be able to knock sense into him by then. If you think you're going to find success with your high school rock band, then someone needs to knock some sense into you.
See also: knock, sense

talk some sense into (one)

To assist or persuade one to start thinking sensibly (about something). Jason is convinced that he wants to join the circus, but I'm hoping we'll be able to talk some sense into him. If you think you're going to find a high-paying job right away without any experience, then you need someone to talk some sense into you.
See also: sense, talk

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

Slang
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