From Longman Dictionary of Contemporary Englishdrive something homedrive something homeCLEAR/EASY TO UNDERSTANDto make something completely clear to someone He didn’t have to drive the point home. The videotape had done that. → drive
Examples from the Corpus
drive ... point home• But it took the problem of cross- border sewage pollution to really drive the point home.• He didn't have to drive the point home. 