Tailpipe (noun)

1. A pipe or tube through which exhaust gases from an internal combustion engine are expelled from the vehicle.
2. The pipe that carries exhaust gases from the exhaust system to the rear of a vehicle.

Origin:

Tail + pipe.

Examples:

1. The tailpipe of the car was rusty.
2. He was inspecting the tailpipe for any leaks.
3. The tailpipe was clogged with debris.
4. The tailpipe was replaced during the maintenance.
5. He was checking the tailpipe for any blockages.