A "carry on cabby" is a person who drives a special kind of car called a taxi. A taxi is a big car that people can use to go places they need to go. The person who drives the taxi is called a cabby.
The job of a carry on cabby is to take people from one place to another, like from their home to their school or from their work to the airport. The carry on cabby has to be really good at driving and know how to get around the city. They also have to be polite and friendly, because they have to talk to lots of different people all day long.
Before a carry on cabby can start working, they have to make sure their taxi is in good condition. They have to check the brakes, the lights, and the tires to make sure everything is working properly. They also have to keep the inside of the taxi clean and tidy, so it's comfortable for their passengers.
When someone needs a ride, they can wave down a carry on cabby and ask for a ride. The cabby will open the door for them and ask them where they need to go. Then they will drive them there safely and help them get their bags out of the car.
At the end of the day, the carry on cabby returns the taxi to the company they work for and gets paid for all the rides they gave. It's a busy and exciting job for someone who likes to drive and help people!