漫天要價;敲竹槓
the fact of sb charging too much money for sth
You wouldn't believe some of the prices they charge; it's daylight robbery.他們的要價有一些你都不會相信,簡直就是在光天化日之下搶劫呀!
釋義來自《牛津高階英漢雙解詞典》第 9 版