be sick of something 对某事感到厌倦

I don't know how you guys aren't sick of me now. I'm sick of me.

我不知道你们怎么还忍得了我。我自己都受够自己了。

Notes: sick除了表示生病，呕吐，还有厌倦的意思。be sick of something是指对某事感到厌倦。

I'm sick of her moaning.

她的牢骚我都听腻了！

He is sick of his boss.

他受够他的老板了。