The Collaborative International Dictionary
drive-in window
drive-in window \drive-in window\ n. a window at a business establishment, such as a bank or restaurant, where patrons may transact business or order goods while staying in their automobiles; as, to cash a check at the drive-in window of the bank.
Usage examples of "drive-in window".
I pulled up to the drive-in window at McDonald's and asked for a QP with cheese, a large order of fries, and a Coke to go.
After seeing Carlo off at the airport, she'd gone through the drive-in window at a local fast-food restaurant and had picked up a cardboard container of fried chicken, complete with French fries and a tiny plastic bowl of coleslaw.