: a sheet of thin material that hangs behind a wheel of a vehicle and that stops mud and water from hitting the vehicle or other vehicles.

What is mud flapping?

noun. a flap on a car, truck etc, to protect the vehicle from mud and debris.

What is the meaning of the mudflap girl?

Filters. An iconic silhouette of a woman with an hourglass body shape, sitting, leaning back on her hands, with her hair being blown in the wind; typically found on vehicle mudflaps, clothing , and other items associated with trucking in the United States .