watching paint dry无聊透顶

它的字面意思一目了然：是多么无聊的一件事啊！

Listening to his lecture is like watching paint dry.

听他的讲座简直无聊透顶。

twiddling thumbs无所事事

无聊的时候，也许你会摆摆手指头，彰显自己自带节奏，但这是非常无聊的动作。

twiddle thumbs就有“无所事事、无聊”的意思。

I was just twiddling my thumbs until the phone rang.

电话铃响起之前，我一直闲得发慌。

be weary of sth/doing sth厌倦某事/做某事

doing something的意思是：对某件事失去了热情和兴趣。

She was weary of years of housework.

这么多年干家务，她已经厌倦了。

be fed up with感到讨厌或厌倦

be/become fed up with：对某人或某事感到讨厌或厌倦

如果某些状况持续了太长时间，让你忍无可忍，你就可以用be fed up with。

例如：

We all became fed up with his long speech.

他的长篇演说我们都觉得讨厌。

The husband has been fed up with his wife's nagging.

丈夫受够了妻子的唠叨。