Rather than repeating all 12 verses, I’m only posting the last one.

On the twelfth day of Ouchmas
my true love sent to me:
12 Bums for Whipping
11 Thighs for striping
10 Boards a Whacking
9 Schoolgirl spankings
8 Blades a Cutting
7 Dawns for Flogging
6 Nieces Sobbing
5 Vicious Swings
4 Naughty Nerds
3 Bad Gwens
2 Studded Gloves
and a Red Bottom for my Knee

[Bums refers to buttocks]