Plural for commonwhore the useless shitbagcar notorious with the commonsfolk of Australia a.k.a Holden Commodore. Commondoors are so common that they are often mistaken for dunny doors.
Farkin hell Gazza, look at all those commondoors.
Fark me drunk Bazza, fuck a duck.
See commonwhore, commodore, shitbox, bomb, dunny, Coinage