This is a line in the song lyrics of 「10月のクリスマス」.

I think the basic meaning of this line is:

Finally becoming somewhat hopeless.

My main question is what is the meaning or purpose of コ here? It does not seem to attach to an adjacent element (イケない and particle に).
By itself, other than 子 somehow, I have no idea what it is for.

  • I'm fairly certain it is 子, and ~てしまう(~ちゃう)here is to be interpreted 'regretfully'.
    – Angelos
    Commented Jul 13, 2015 at 23:37

1 Answer 1


You answered your own question.

It is こ/コ/子{こ}/娘{こ}, etc. In this particular context, it means a "girl".

「ちょっとイケないになっちゃう」 means "I become a slightly 'bad' girl."

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