The term 'Punishing Leather Strap' is a reference to the tawse, a leather strap used as a form of corporal punishment in Scotland and other parts of the British Isles. The tawse was typically used in schools to punish students for misbehavior, and it was also used in some prisons and other institutions. The tawse was made of two or more strips of leather, and it could be used to inflict pain without causing serious injury.