The Problem with Over the Knee Discipline2

In the United States this would be thought of as “spanking”, whereas in Britain most of us would describe it as “smacking”. In this country a spanking is when a child is put otk and given more than one smack on its bottom. The punishment is controlled: the slaps land only on the bottom, which is not the case with giving a few random swipes.

How many smacks constitute a proper spanking? (The word used from now on in the British sense.)