(Noun) An idiot from New Jersey. Most notably encountered while driving. Known for cutting people off, riding up your ass, bald tires in the snow, and just plain old being stupid while attempting to operate a motor vehicle obviously direction indicators (turnsignals) are an option on the vehicles they drive. Just one look at the plates on the vehicle explains it all; its a njidiot.

A person with an outwardly dominant, masculine, or aggressive personality, but who also enthusiastically takes on the submissive or "bottom" role in the bedroom.