こうこう

adverb, noun or participle which takes 'suru'

so and so; such and such

Used to refer to something in a vague or indirect way, similar to 'such and such' or 'so and so' in English. Often used when the speaker does not want to or cannot specify details.

• こうこういう理り由ゆうで、今日きょうは休やすみます。

  For such and such reasons, I'll take the day off today.

• 彼かれはこうこうと言いって、部屋へやを出でていった。

  He said something like 'so and so' and left the room.