nagrivator
Similar to "nagrivate", but is what your significant other does while sitting in the passenger seat of the car.
Said to the nagrivator, "I know that I passed the turn-off, went through a red light, and am going too fast, will you please stop nagrivating me!!"
Nagrivate
To give directions by nagging the driver in an aggravating manner.
"Navrigate? I never nagrivate! I'm just reminding you that Mom's house is on the left, and if you keep driving so fast you're going to miss the turn! That's not nagrivating! And signal this time! You always forget to signal until it's too late!"
nagrivated
The feeling one gets when the wife (or other significant) will not let up regarding your doing something.
She nagrivated me until I had to stop watching the Super Bowl and do the things she wanted