Drive Home Meaning

(idiomatic, transitive) To emphasize (a point) with tangible or powerful demonstration.

Example: 1969, James Plunkett, Strumpet City: A Novel, page 396
  He grunted as he drove each nail home.
1996, Harry Harrison, One King's Way, page 186
  Karli shook himself, drove home the last nail with a flat stone, straightened up.
2004, Judith Tarr, Queen of the Amazons, page 293
  Just as Ione began to slow, she struck Ione's sword aside and drove her own blade home.
  â€œI do what I like”, he said, and — just to drive home the point — he spat on the newly-cleaned floor.