とっくのとう

Meanings

usually written using kana alonerare term

Rare emphatic expression meaning something happened or was the case a very long time ago, often with a nuance of 'already' or 'long since'. Used in colloquial or literary contexts.

とっくのとうに諦あきらめていた夢ゆめだった。
It was a dream I had given up on a long time ago.
その話はなしなら、とっくのとうに知しっているよ。
If it's that story, I've known about it for ages.