hammer home

Verb

hammer home (third-person singular simple present hammers home, present participle hammering home, simple past and past participle hammered home)

1. (idiomatic) To repeatedly or continually emphasize (an opinion or idea) until or so that a person or group of people understands it.
   • Our instructor would hammer home the point that safety was most important.
   • What would Fred Flintstone say if we insisted on spelling his name Phred Phlintstone! Just to hammer the point home, IUPAC only accepts alternative spellings for two elements, and neither of them is sulfur: 'aluminum' and 'cesium' are fair game, although Nature Chemistry uses aluminium and caesium.2009 August, “So long sulphur”, in Nature Chemistry, volume 1, number 5, →DOI, →ISSN, page 333

   Synonyms:

   drive home