to get money from someone in a way that is not honest

He diddled me! He said that there were six in a bag, but there were only five. 他骗了我！他说一个袋里有6个，但实际上只有5个。

I checked the bill and realized the restaurant had diddled me out of £5. 我核对了账单，发现餐馆多收了我5英镑。

to work with something in a way that is not serious, or to play with something

He diddled with the washing machine, but it still wouldn't work. 他摆弄了一番，但洗衣机还是不运转。

I'm not much of a musician, I just like to diddle around. 我不是什么音乐家，只是瞎摆弄乐器而已。

to have sex with someone

He's been diddling his secretary for years. 他与自己的女秘书有染已经很多年了。