naggigator - A naggigator is someone who doesn't know the way but insists

A naggigator is someone who doesn't know the way but insists on telling you every 10 seconds. They're like a GPS with a mouth and a middle finger.

'We're lost. We're totally lost. I know we're lost. I swear we're lost.'

'Turn here! No, turn there! Why did you not turn here? I'm gonna cry.'

'You're driving like a drunk raccoon. I'm gonna get out and walk.'