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- get knuckles rapped
get knuckles rapped
get one's knuckles rapped
1. Lit. to get one's knuckles struck with a ruler as a punishment. I got my knuckles rapped for whispering too much. You will have your knuckles rapped if you are not careful.
2. Fig. to receive a minor punishment. The lawyer got his knuckles rapped for talking back to the judge. Better watch your tongue if you don't want to get your knuckles rapped.