The act of forcing your hand upward in the air and using force towards another person (preferably your bitch--thats a dog I mean) and hitting them with THE BACK of your hand, while yelling victoriously KA-BACKHAAAND.
Can be considered similar to the pimp slap. But, ...it's better.
The priest ka-backhanded his nun.
What a blashemously awesome ka-backhand.