A thousand deaths - A ninja move where Kakashi's fingers go up Naruto's butt and

A ninja move where Kakashi's fingers go up Naruto's butt and make him fly like a kicked puppy.

I used that move on my brother and he flew into the kitchen.

My friend did that to his mom and she yelled at him for a full hour.

I saw that in a video and I laughed so hard I got a headache.