Ghost Riding the Whip

Per Wikipedia:

To ghost ride, frequently used in the context of "ghost riding the whip" (a "whip" being a vehicle) or simply ghostin', is when a person puts the car in neutral or allows it to idle and then the driver (and passengers) of a vehicle exit while it is still rolling and dance beside it or on the hood or roof.

Beni’s going to kill me – I promised her that I’d ghost ride our whip only when I was far away from Olivia’s impressionable eyes.