Hahnjob - Putting your fist in a woman's butt and shaking it like a so

Putting your fist in a woman's butt and shaking it like a soda can until she explodes.

My brother did a Hahnjob on his girlfriend and she passed out and had to go to the ER.

My teacher does a Hahnjob on the principal every Friday and no one says anything.

I did a Hahnjob on my dog and it just stared at me like I was crazy.