If someone is reversing out of a driveway and scrapes the whole length of the car along the fence they are said to be 'braille driving'.
Other examples are reversing in to posts or poles - once the driver hits the pole they know to stop.
Braille driving while parallel parking is achieved by running the tyres along the kerb or bumping in to the car behind or in front.
Any sort of driving that involves putting scrapes, dings, dents or bingles on the vehicle is considered to be braille driving.
Anything larger than a scrape, ding, dent or bingle is known as 'Advanced Braille Driving'.
"I have been practising my braille driving"