A tow truck that in the World of Cars represents a loyal friend to Lightning McQueen and a good hearted person, but in the real world if you saw him you would be reminded of a drug dealer or homeless pedophile.
Lightning McQueen: Hey there Mater, wanna go Tractor Tipping?
Random Car in the “real world:” Get the fuck away from me rusty rapist
the name for a significant other who is a dedicated partner, but where no marriage has taken place. indicative of a much stronger relationship than simply "boyfriend" or "girlfriend."