1 definition by petemg
The vehicle belonging to your significant other. It is either too fast or too slow, the wrong kind of transmission, not cool enough, or too new and strange compared to your one true ride.
Person 1: Why are you sad? You love driving on road trips!
Person 2: Sure, but my car is in the shop so we have to take the car-in-law.
Person 2: Sure, but my car is in the shop so we have to take the car-in-law.
by petemg January 25, 2011