Also refered to as an NJ. The dominant male takes a large knife, perferably a butcher knife, and forcefully inserts it into your partners neck. To stop the bleeding insert your penis and wildly fuck the neck gash. Then to finish off strong, ejaculate on the wound to cauterize it.
Tom: After i took jesse's mom home i rocked her with a Neck Job
Jesse: Is that why she never came home?
Tom: Yep she's dead