I was tickled to discover that we'd both done the same thing.

我高兴地发现我俩在做同样的事。

《牛津词典》

I'm tickled to death.

我都要高兴死了。

youdao

Nancy was tickled to death when everybody paid his court to her.

人人都对南希献殷勤，她真是高兴死了。

youdao

But Dad was tickled to death--he loved it, he was happy with the product.

FORBES: The Kings Of Bourbon

"Johnny would have been just fine on him, but we were tickled to death to have Joel back, " McGaughey said.

WSJ: Rosario having the ride of a lifetime with Orb

This reviewer was admiring of it, and then tickled to notice that the publisher's spell-check software program had added nonsenses to the text (Peter Brought, for example, for Peter Brough).

ECONOMIST: Ventriloquism