くぎをさす

釘 を 刺 す

  1. expressions (phrases, clauses, etc.), Godan verb with 'su' ending

    to give a warning, to remind (a person) of, to drive in a nail
    idiomatic expression

    • 実際はそんなことあるわけないが、釘を刺すにはちょうどよさそうだ。
      There's no way something like that would really happen, but it seemed just right to drive the point home.