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1.
N. A person who rides on the shoulder of the road

(To road parrot)- when one rides on the shoulder of the road, so to avoid long lines and traffic.
Dude, fuck traffic, time to road parrot!
by Jose b October 08, 2006
 
2.
A person in the passenger seat, who reads out loud every sign, advertisement or store name you are driving by.
Driver: "....."
Passenger: "Whole Fooooodsss....Superman: The Movie.....For Rent!............get more today.......DriveThruuuu...."

Backseat Passenger (next day): "Dude, you didn't tell me your wife is a road parrot - I would have taken the fucking bus."
by Enno October 17, 2006