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a person in the passenger's seat (usually a woman) who nags instead of navigates; a backseat driver
Jane: I think we're lost, maybe I should drive, turn here, you missed it, watch out for that squirrel, can't you drive?

Dick: Not with you carrying on like that. Geez, you're such a nagavator.
by madelinemouse June 29, 2005
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2
Passenger in an automobile who constantly tells the driver what he/she is doing wrong, where to go, how to drive, etc. Usually very wrong and very annoying.
I'm not going the wrong way! Quit being such a nagavator.
by kve777 May 03, 2009
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