rap somebody on the knuckles

US /ræp ˈsʌm.bɑː.di ɑːn ðə ˈnʌk.əlz/
UK /ræp ˈsʌm.bɑː.di ɑːn ðə ˈnʌk.əlz/
"rap somebody on the knuckles" picture
1.

menegur seseorang, mengkritik seseorang

to criticize someone for something they have done wrong

:
The teacher had to rap the student on the knuckles for cheating on the exam.
Guru harus menegur siswa karena menyontek saat ujian.
The manager rapped him on the knuckles for being late to the meeting again.
Manajer menegurnya karena terlambat rapat lagi.