knock (some) sense into (one)

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
Farlex Dictionary of Idioms.

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
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

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
Farlex Partner Idioms Dictionary

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
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • knock (some) sense in
  • knock some sense into
  • knock/talk some sense into somebody
  • talk some sense into (someone's) head
  • talk some sense into (one)
  • hold (someone or something) in low regard
  • give your head a shake
  • have (someone) going
  • have going
  • stewed, screwed, and tattooed