From Longman Dictionary of Contemporary Englishknock some sense into somebody/into somebody’s headknock some sense into somebody/into somebody’s headinformalSENSIBLE to make someone learn to behave in a more sensible way The struggle to build up her own business had knocked some sense into her. → knock
Examples from the Corpus
knock some sense into somebody/into somebody’s head• Maybe getting arrested will knock some sense into him. 