rap somebody on the knuckles
US /ræp ˈsʌm.bɑː.di ɑːn ðə ˈnʌk.əlz/
UK /ræp ˈsʌm.bɑː.di ɑːn ðə ˈnʌk.əlz/

1.
وبخ شخصًا, انتقد شخصًا
to criticize someone for something they have done wrong
:
•
The teacher had to rap the student on the knuckles for cheating on the exam.
اضطر المعلم إلى توبيخ الطالب لغشه في الامتحان.
•
The manager rapped him on the knuckles for being late to the meeting again.
وبخه المدير لتأخره عن الاجتماع مرة أخرى.