call someone's bluff
US /kɔl ˈsʌm.wʌnz blʌf/
UK /kɔl ˈsʌm.wʌnz blʌf/

成語
1.
揭穿某人的虛張聲勢, 挑戰某人
to challenge someone to prove that what they are saying is true, or to show that they are not afraid to do something that they have threatened to do
範例:
•
She threatened to quit, but I decided to call her bluff and see if she would actually do it.
她威脅要辭職,但我決定揭穿她的虛張聲勢,看看她是否真的會這樣做。
•
The politician made a bold claim, and the journalists decided to call his bluff by demanding evidence.
這位政客發表了一個大膽的聲明,記者們決定通過要求證據來揭穿他的虛張聲勢。
在 Lingoland 學習這個單詞