The role self-assigned by/to the person in the passenger or back seat of a car who insists on giving unwanted and endless streams of useless directions, much to the annoyance of the driver.
"Look, I'm driving this car. I know where I'm going and yes, I can see that stop light. I don't need a Naginator."
1. a halberd-like weapon consisting of a long pole fitted with a one- to two-foot-long metal blade with a slightly curved end somewhat similar to the end of a scythe.
The mostbeautiful person you will ever meet. Naintaras are fun, loving, and if you ever were to have sex with a Naintara, you are in for a real special treat.