When a passenger risks his life to fix something on the outside of the car by pulling himself through his window using his seatbelt as a tether - all the while, the driver never slows down. Usually the result of rushing to reach one's destination in a p.o.s.
Note: beware of rain at high speeds.
Jonathan: The windshield wiper came loose again! Evan, spacewalk.
Evan: We're going 80 miles an hour! The rain feels like bullets, let's just pull over-