Masterbating over a picture of someone you hate.
It is widely believed that this technique embues the wanker with superior wrist action.
Also it is believed that this technique increases torque in the elbow
"I had such a viscious hankin' session over a picture of Adolf Hitler earlier I broke my arm."
When you're gone off that Hank juice, or drunk off some Captain's and are at high energy, somewhat comparable to being Hyphy or Crunk.
"Eh, you want some more of that Hank juice?"
"Nah, I'm already hankin'!!!"