drive n' ditch
Approaching a car dealership, as if planning on buying the car, but with no intention to do so. After getting a detailed view of the car, checking it out face to face, and then taking it on a lengthy test drive, you then leave the dealership, claiming to no longer be interested.
"So I totally drove this sexy Viper the other day."
"No way! Where?"
"Dealership. drive n' ditched their ass."
"No way! Where?"
"Dealership. drive n' ditched their ass."