wipe the smile off someone's face
US /waɪp ðə smaɪl ɔf ˈsʌm.wʌnz feɪs/
UK /waɪp ðə smaɪl ɔf ˈsʌm.wʌnz feɪs/

1.
讓某人笑不出來, 挫敗某人的得意
to make someone stop feeling happy or confident, often by doing something unpleasant or by revealing an unpleasant truth
:
•
Winning the championship will really wipe the smile off their face.
贏得冠軍真的會讓他們笑不出來。
•
The bad news quickly wiped the smile off her face.
壞消息很快就讓她笑不出來。