NAH - Not A Harley refers to a bike other than a Harley
NARMA - North American Russian Motorcycle Association
NBD - Never Been Dropped - found in used motorcycle advertisements, usually for bikes that HAVE been dropped.
Neck - The front of a motorcycle frame, where the steering head is located.
Nipple Surfing - Self explanatory, refers to sliding across the ground face down after falling off a motorcycle.
Nomad - They are members of a motorcyle gang and will wear the club's colors. The bottom rocker will read "Nomad." In some clubs they are the enforcers. They do not belong to any one chapter. He will attend club meetings and pay required dues to different chapters, depending on his travels.
Nad - Nomad 1500G