Has Rapped over the Knuckles?

the act of speaking to someone severely or angrily because of something they have done or failed to do: I got a rap on the knuckles for not finishing my essay on time.

What does rapped over the knuckles mean?

Definition of a rap on/over/across the knuckles

informal. : criticism or punishment that is given in a gentle way for something that one did wrong I received a rap on the knuckles for missing the meeting.

What does giving someone knuckles mean?

As in, someone is going to punch another person in the mouth. The mouth eats the knuckles of the fist like a sandwich. I think you would see this in comedy movies or TV shows. Or in older ones.