From Longman Dictionary of Contemporary Englishdrive something homedrive something homeCLEAR/EASY TO UNDERSTANDto make something completely clear to someoneHe 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- bordersewagepollution to really drive the point home.• He didn't have to drive the point home.