New Jersey Headbutt Posted in N Best definition New Jersey Headbutt The act of shoving ones head up a girls butt or vagina forcefully. Yo man, I did that new jersey headbutt with my girl last night she was screaming so loud! How satisfied are you with the definition? Looking for New Jersey Headbutt meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 85 times.