What is the meaning of Pit_stop?

A stop made during an automobile race at the pit to refuel and perform other periodic maintenance on the vehicle.

A brief stop for fuel, rest and/or refreshment during an automobile journey.

A stop during any pedestrian or automobile travel for any utilitarian personal purpose, especially use of a bathroom.

A place that offers food, beverages, and other goods and services for those stopping on an automobile journey.

A utilitarian stop on a figurative journey.

Source: wiktionary.org