coin laundry—(U.S.) a self-service laundry with coin-operated washing machines:
- If you need to use a coin laundry, be sure to sort everything at home before you go.
money laundry—a facility (such as a bank, etc.) engaged in transactions aimed at concealing the identity of illegally obtained money:
- I figured it was a money laundry, probably for drug money, but I was mistaken.