When you see a old POS pickup truck being used as a garbage truck with wooden walls built on the bed with a black person in the back jumping up and down to compress the bags so they do not fly out.
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. vehicle.
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-
Jonathan: Never!
Spacemonkey is the nickname of Daniel Jackson, given by Jack O'Neill. Daniel hates saidname, which makes Jack use it even more. Given to him after he is alive after all (he almost pulled a Daniel Jackson).