car wash

noun3

1. •
   An event at which people (often students) wash cars, often for a small fee or donation
2. •
   A place at which a car is washed, usually for a fee and often mechanically by driving the car through a tunnel.

   • I'm going to take the car to the car wash.
3. •
   An instance of washing a car, especially such a place.

   • I'm going to take the car in for a car wash.