nutcase

音标发音

This is especially problematic when the team thinks you're an erratic, egomaniacal nutcase with little or no real world chops.
当团队认为你是一个没有经历过风浪、古怪、自私的疯子时，问题会更为严重。
She leaves him a cute note on his car (“please don’t think I’m a nutcase”), and soon after a cafe conversation they’re confessing their mutual appreciation for Paul Simon’s “Graceland.”
安娜在雅克布的车上留了一张可爱的小纸条，上面写着“请不要认为我的脑子进了水”，之后两个人在咖啡馆畅谈，并互露心声，原来两人都喜欢保罗·西蒙的歌曲《Graceland》。
Like Susan Boyle, Zhu arrived on set poorly dressed, and had most people in the audience thinking he was just another nutcase.
像苏珊大妈一样，他在台上也是衣着极不得体，大多数观众觉得他也就是下一个出洋相的疯子。

Listening to my own inner nutcase led me to start my business over twenty years ago.
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Democratic interest groups denounced John Ashcroft as a racist, homophobic, Confederate-sympathising nutcase.
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"From their perspective I was an extremely rich nutcase, " Power says.
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someone who behaves in an extremely silly way or an offensive term for someone who is mentally ill

If you refer to someone as a nutcase, you mean that they are mad or that their behaviour is very strange.