bananas
adjective [ after verb ] informal uk/bəˈnɑː.nəz/ us/bəˈnæn.əz/
傻的;愚蠢的;疯的
very silly
You're going out in this weather? You must be bananas! 你这种天气还要外出?一定是疯了！
go bananas 勃然大怒；极度兴奋激动
to become extremely angry or excited
She'll go bananas when you tell her the news. 你若告诉她这个消息，她会气疯的。
When she came onto the stage, the crowd went bananas.
I just went bananas when I found out what he had done.
When we arrived, Mary was going bananas and shouting at everyone.
Sales people go bananas when they see what you can do with this software.