have a finger in every pie 参与一切事情, 好管闲事;

You want to have a finger in every pie, don’t you?

你什么事都要参上一脚吗?

be all fingers and thumbs 笨手笨脚

I’m all fingers and thumbs this morning.

今天上午我笨手笨脚老是出差错。

put the finger on 告发，指出

Someone put the finger on the leader of the gang.

有人告发了那帮歹徒的头目。

give someone the finger 竖起中指, 表示嘲笑

Give a clown your finger， he’ll grasp your fist.

如果你嘲笑小丑，他就会抓住你的拳头(打你)。

finger/writting on the wall 灾难降临的预兆，不祥之兆

The increase in electricity prices is the writing on the wall for many small businesses.

电费的提高对许多小企业来说是个不祥之兆。